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Carrier 42C Air Conditioner User Manual

1. THERMOSTAT L BRN 24 01 06 BRN CAD BID eo o S H of RISE 208 03 og 4 Lo mous 3 SPEED BRN B 5E SWITCH 5 A120 V WHT ALL _ OTHERS BLK Ble n NEC CLASS 1 WIRING Bue 5 BRN 2 RED RED f M BLU l BLU B c BLK BLK M l Q C e M SO BONN i l i WHT ifi WHT 0 WHT Hier f 1 VALVE 21 I e RED RED m USED BLU 3 S 208 240 BLK 3 BLK NL Y WHT WHT SERVICE SWITCH LIMIT SW OPTIONAL gt oa FUSES GH BLK scel Sd OPTIONAL es NGC BLK L1 z s e 9 f 4CDMs WHT gt or N e l 2 15
2. To STAT RS 3 RS R G3 PT IONAL 4 DUCT SENSOR RED ee WHT WHT 2 _ Ta Q C BLK 3 Ay RED _ ma N b d a XM BLU BLY YEL PR e LK HEAT BLOWER LLL BEC VALV M TOR BLK Ayn BLK Zen O YEL Lo NP WHT WHTX S Q C vem a 9 Bees PUR SEL EK ean 2 YEL ig BLK Val v N A ee er x R RE RED 4 ED RED lt BLU BLU BLU c AR YEL BLOWER 3 I2 a9 K L MOTOR BLK a BL BL T 5 WHT O 5 O SERVICE SWITCH a COPTI AL gt FUSES JE 1 LI o s BUR L2 ote e dle WHTX XFORMER EQUIPME 208 840V LZ BLK N GROU NEY WHT EQUIPME gt GRUU lt GROUND REQUIRED OPTION SER SWITCH Fig
3. BRN ___ 3 SPEED SWIT I 120 WHT ALL OTHERS BLK gt a p x c tJ A pd CLASS 1 WIRING wt RED RED P M BLU BLU ca BLK 773 BLK N MOTOR JL BR 3 J 25 e Ke CLIM PU 3 RED 4 RED BLU 3 BLU BLK BLK BLK 7 BLK WHT RED ai lt 1 lt VALVE SERVIC SWIICH e OPTIONAL 77 FUSES j 5 OPTIONAL L1 foes obe _ or 20 10 e WHTx RED FQUIPMEN 208 240 GROUND We NLY FQUIPMEN 2x GROU gt GROUND REQUIRED OPTION SER SWITCH Fig 53 42SG SH SJ VA VB VC VE VF 2 Pipe Heating and Cooling with REMOTE DEVICE BOX UNIT MOUNTED J BOX BLOWER MOTOR GROUND Automatic Changeover Unit Mounted Thermostat Line Voltage OHO M I
4. 2 WHT x ie A BLK VALV NEC CLASS 1 WIRING 7 WHT B 1 E E 1 RED ARED V M BLU BLU iB 3 COM BLK im rin BLK 24 BK e to NL P 4 7 i RED RED 4 BLK BLU BLU 3 z 1 B 32 BLK A WHT WHT WHT 534 E SERVICE EN SWITCH 0 1 BRN gt FUSES X B me d OPTIONALD 3 NC 77 2 BLK L1 3 4CUMg WHTx L2 or oH E WHTX EQUIPME 208 240V BL GROUND o NL Y BLK ZON GRDU GROUND REQUIRED OPTION W O SER SWITCH Fig 57 428G SH SJ VA VB VC VE VF 2 Pipe Heating and Cooling with Auxiliary Heat Unit Mounted Thermostat Line Voltage 59 REMOTE DEVICE BOX OHO M IH UNIT MOUNTED J BOX QUICK CONNECT
5. Nad LV3H Lk 771 CENE WHT A BLK cogl i COM I VALVE ESSEE RED BLU BLK WHT r 4 SERVICE TU ZEB ERVICE VALVE SWITCH QV L 1 OPTIONAL gt FUSE lt d 4 OPTI LI 4 o 6 e se I L2 or o e e be se EQUIPMENT 208 240V NLY GROUND Ser oen UND R ER SWITCH EQUIPMENT GRUUND Fig 65 42SG SH SJ VA VB VC VE VF 4 Pipe Heating and Cooling Unit Mounted Thermostat Line Voltage 64 DEVICE 3M TAW IH Nna 1005 Nag 13A l 21 UNIT MOUNTED J BOX A ONLY 120V WHT ALL OTHERS BLK QUICK CONNECT VE OPTIONAL BLK I 1 L RED G C COOL enl jn jm 7 wel ES L2 or Ll GROUND Fig 66 42C S V except VG and 42D 600 1000 cfm 4 Pipe Heating and Cooling Remote Wall Mounted Thermostat Line Voltage
6. 67 Coil Air Vent Manual or Automatic 67 Check 67 Fan Motor 67 Clean Fan 68 Clean Electric 68 Clean or Replace Air Filters 68 68 START UP CHECKLIST FOR 42C D S V SERIES FAN COIL AIR CONDITIONERS CL 1 CL 2 SAFETY CONSIDERATIONS Installation of this unit can be hazardous due to electrical com ponents and equipment location such as a ceiling or elevated structure Only trained qualified installers and service mechanics should install and service this equipment When installing this unit observe precautions in the literature labels attached to the equipment and any other safety precau tions that apply Follow all safety codes e Wear safety glasses and work gloves e Use care in handling and installing this accessory A WARNING ELECTRIC SHOCK HAZARD To avoid the possibility of electrical shock open and tag all service switches before installing this equipment INTRODUCTION This document contains general installation instructions for the 42C D S V unit fan coils Refer to the unit wiring diagram installed on the blower housing or specific manufacturer litera ture for any other type of factory mounted controls See drawi
7. 1 2 13 LEGEND 1 Optional Unit Mounted Control Box 2 Drain Pan Auxiliary Shipped Loose 3 Supply Conn 5 OD 4 Drain 3 4 in MPT 5 Return Conn 5 g in OD 6 Air Vent 1 5 7 Discharge Opening 3 7 RIGHT SIDE VIEW NOTES 1 Right hand unit shown left hand unit opposite Coil connection locations are 5 g in Unit sizes 02 through 04 have one motor 2 blowers size 06 has 2 motors 4 blowers Standard 2 row coil shown ON oo Optional unit mounted switch box and controls when specified are installed on opposite side from cooling connections 8 Filter Height increases by 2 in with electric heat Not shown 3 speed fan switch 1 gt fiberglass insulation on inside of casing closed cell foam on main drain pan Units have galvanized finish For optional coil connections view 42VC 203 1 using the Fan Coil Builder 9 Dimensions shown in inches mm NOM DIMENSIONS UNIT SIZE AIRFLOW Qm Blwe moor sf b 02 200 23 22 17 03 300 28 27 04 400 06 600 2 1 1 18 50 2 1 1 53 60 2 1 2 08 72 4 2 3 06 110 Unit weights based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 18 42VC Furred In Lowboy Unit Dimensions 21 TOP VIEW ammi 4 FRONT VIEW LEGEND 1 Unit Mount
8. BOTTOM RETURN AIR PANEL FRONT VIEW 7 8 22 CONDENSATE RIGHT SIDE VIEW NOTES 1 Right hand unit shown left hand unit opposite 2 nternal factory valve package and drains may not align with cabinet knockouts 3 Dimensions shown in inches mm All dimensions are 1 4 in 4 Bottom panel is Arctic White polyester powder coat paint UNIT REAR RETURN 02 6 1 7x21 03 6 1 7x21 04 6 2 7X27 06 7 2 7 x 38 08 7 2 7 x 38 10 7 4 7 x52 12 7 4 7 x52 Fig 11 42CK Horizontal Cabinet Unit with Telescopic Access Panel Front Supply and Rear Return Dimensions 14 1 25 1 1 2 38 ELECTRIC STRIP 1 DUCTED HEATER ELEMENT e 1 25 FILTER STRIP HEATER HIGH LIMIT CONTACTOR BOX L 0 dere pem D OPTIONAL L SHAPE DRIP LIP SHIPPED LOOSE ere 4 CHILLED HOT WATER SUPPLY Et 1 13 ____ amp RETURN CONNECTION Sosa Pe en ee ee ee Uc 660 527 0 I RESILIENT MOUNTING GROMMETS WITH 3 8 19 i Be E DIA HOLE TYP OF 4 1 1 1 1 NEN na 1 1 1 1 5 75 TET Lad a a
9. LL 1 25 10 FRONT VIEW FRONT VIEW RIGHT SIDE VIEW LEGEND NOTES 1 Supply Conn 5 g in OD 1 Right hand unit shown left hand unit opposite Coil connection 2 Air Vent a in locations are 5 g in 3 Filter Front panel has an Arctic White baked finish Standard 2 row coil shown Unit size 01 has one motor one blower size 03 has 2 motors 2 blowers Unit has 1 2 flanges for mounting to wall surface Front panel hooks at top of unit swing down and snap in at bottom against a spring clip Not shown 3 speed fan switch wall plate 1 2 fiberglass insula tion on inside of casing closed cell foam on main drain pan Dimensions shown in inches mm 4 Return Air Grille Stamped 5 Stamped Supply Grille 6 Return Conn 5 g in OD 7 Removable Front Panel 8 Drain Conn g in OD 9 Auxiliary Drain Pan 10 Valve Compartment 11 Junction Box N DIMENSIONS UNIT UNIT SIZE AIRFLOW WEIGHT A B p j Blower Mer 01 150 253 153 4 14 11 5 123 4 1 1 40 03 300 393 4 293 28 115 46 257 3 2 2 74 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 22 42VG Furred In Wall Unit Dimensions 25 4 1 2 4 1 2 aiT B 114 DRAIN OUTLET TOP VIEW 27 1 2 699 11 1 2 16 416 9 8
10. Fig 60 42C S V except VG and 42D 600 1000 cfm 2 Pipe Heating and Cooling with Auxiliary Heat Remote Wall Mounted Debonair Thermostat 24 v Thermostat 2 Pipe Total Electric Heat with Valve Con trol With this system the complete heating requirement for the space is provided by the electric heater the water system is never changed over for heating It is therefore possible just as with 4 pipe systems to have heating or cooling at any time of the year The fan runs continuously unless it is manually switched to OFF position Fan must be on before thermostat can send signal to open chilled water valve or turn on electric heater 61 Normally an automatic changeover thermostat with a dead band between heating and cooling is used but a manual changeover thermostat is also suitable A 2 way or 3 way valve must also be used so that the chilled water is off whenever the heater is on No changeover device to sense water temperature is necessary NOTE Wiring diagrams are for 120 v power supply If other voltages for heaters or controls are specified wiring may differ from that shown See Fig 61 and 62 for line voltage control See Fig 63 and 64 for 24 v control RELAY COIL LETTER REFERS 1 RELAY P N 706654 XX
11. Q C a D a 0 4 318 IVA ve 1V3H 9 1009 and NEC CLASS 2 WIRING 8 BLK BLK 6 5 oK 144 18 Sa TAA d3A Q C BLK 2 lt VALVE fld Nad es 5 O WIS VED M9729 S J CLV3H2 H 22 CAN IVA 2 5 aagi 1842766 e LIMIT SW Ps BLK BLK WHT 9 WHT 7 BLK WHTx L RED RED WHTx 4 QYEL BLK yore FUSES 4 BLK BLOWER 3 a YEL USED BLK MS t 208 240 amp 4 MOTOR H BLK 2 fea ONLY XFORMER WHT 1 WHT Tu BLK SERVIC CDM WHT WHT SWITCH _ M BLK L 4 i v L8 or 09 ow FQUIPMENT 208 240 TEM GROUND Z y eC EQUIPMENT GROUND 7 GROUND REQUIRED OPTION W O SER SWITCH
12. WHT PMENT 208 240 BLK 1 TP UND 4o i p BLK Ten DME NE E eee ey c caca U n GROUND CREQUIRED OPTION W O SER SWITCH Fig 61 42SG SH SJ VA VB VC VE VF 2 Pipe Cooling with Total Electric Heat Unit Mounted Thermostat Line Voltage DEVICE I BD JA A m 1 fo cd gt Lr lt bd a 2 2 9 m e lt I 2 VALVE BLK wc 1 671 eene L ADNLY 120V WHT ALL OTHERS BLK USED 208 240V LIMIT SWITCH SERVICE SWITCH TO FUSECOPTIONAL re z BLK 6 L2 or N En CONTACTOR EQUIPMENT GROUND ELEC HEATER Fig 62 42C S V except VG and 42D 600 1000 cfm 2 Pipe Cooling with Total Electric Heat Remote Wall Mounted Thermostat Line Voltage 62 RS R G Y1 G3 1 Ge o o 9 DUCT SENSUR RED y RED BLK BLK m RED Pd IPS XM BLU BLOWERY MOTOR BL 8 WHT ae WHT Bn CB 2 Sam IH
13. 3 64 76 L IIIIIIIIIIIIILIIIIIILIIIIIIIIIII I l22l2l 2l 2 2222 23 FRONT VIEW Bs RIGHT SIDE VIEW LEGEND Right hand unit shown left hand unit opposite Coil connection 1 Junction Box remote mount locations are 5 g in E Nuus 2 Unit sizes 02 and 03 have one motor one blower sizes 04 cp eder through 08 have one motor 2 blowers sizes 10 and 12 have 4 Electric Strip Heater Element 2 motors 4 blowers 5 Tell Tale ae Conn 5 g in OD optional 3 Standard 3 row coil shown 6 Drain Conn 7 8 OD 4 Overall unit dimension increases by 4 in with optional electric 7 Drip Lip optional heat 8 Supply Duct Collar 1 in 5 Not shown 3 speed fan switch wall plate closed cell foam on 9 Air Vent 1 g main drain D ja OD 6 Units have galvanized finish Supply Conn s in 7 For optional coil connections view 42CA 203 1 using the Fan Coil 12 Han er Slots 4 Rubber Grommet Builder has Diameter Hole 8 Dimensions shown in inches mm UNIT NOM DIMENSIONS in QTY UNIT FACE UNIT s ze AIRFLOW men AREA WEIGHT epee po fe sat qb 02 38 03 41 04 51 06 61 08 66 10 97 12 109 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 2 2 Furred In Horizontal Unit with Electric Heat Dimensions INSULATED PLENUM 2
14. QTY UNIT FACE AREA UNITWEIGHT A D E Blower Motor Ib 35 37 32 Valve package is factory installed inside the cabinet when ordered with the unit based on component size Bottom return or bottom supply is an ETO engineering to order request Dimensions shown in inches mm o o 02 1 117 03 1 122 04 2 137 06 2 152 08 2 157 10 4 229 12 4 243 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 14 42CK Horizontal Cabinet with Telescopic Access Panel and Electric Heat Dimensions 17 DISCHARGE AIR OPENING TOP VIEW 11 4 5 3 4 114 D 9 146 HE ma p 4 Ll e eee d d P 11 FRONT VIEW LEGEND 1 Optional Unit Mounted Control Box 2 Wall Mounting Holes 4 3 4 Diameter 3 Drain 3 4 in MPT 4 Drain Pan Auxiliary Shipped Loose 5 Supply Conn g in OD 6 Return Conn 5 g in OD 7 Filter 8 Air Vent 1 8 9 Discharge Opening 10 Flexible Conduit 11 Front Access Panel NOM AIRFLOW Cfm 4 C MOUNTING HOLES DIMENSIONS HC GE 4 137 3
15. 1 1 2 1 11 1 1 2 1 1 8 29 MTC HOLES 2 1 4 B 7 TOP VIEW FILTER REMOVAL OPTIONAL REAR RETURN FRONT VIEW LEGEND 1 Junction Box 4 in x 4 in 2 Flexible Metal Conduit 3 Mounting Bracket 4 Drain Conn g in OD 5 Tell Tale Drain Conn g in OD optional 6 Drip Lip optional shipped loose 7 Filter 8 Return Duct Collar 1 in 9 Filter Access Panel 10 Access Panel 11 Supply Duct Collar 1 in 12 Air Vent 1 MPT 13 Return Conn 5 g in OD 14 Supply Conn 5 OD 15 ange Slots 4 Rubber Grommet has 3 g in Diameter Hole 1 25 FILTER FILTER RIGHT SIDE VIEW NOTES Right hand unit with standard 3 row coil shown left hand unit opposite Coil connection locations are 9 g in Unit sizes 02 and 03 have one motor one blower sizes 04 through 08 have one motor 2 blowers sizes 10 and 12 have 2 motors 4 blowers Standard 3 row coil shown Unit available with bottom or rear return air Dimension increases by 4 in with optional electric heat Not shown 3 speed fan switch wall plate 1 gt fiberglass insulation on inside of plenum closed cell foam on main drain pan Units have galvanized finish For optional coil connections view 2 203 1 using the Fan Coil Builder Dime
16. AQUASTATS OPTIONAL BLK L RED RED y i 7 BLOWER PUR MOTOR mem BLK WHT BLK EQUIPMENT 0 HEN Es GROUND BRN L2 or N VALVE RED BLK 5 CONTACTOR WHT WHT 2 AWHT LIMIT SWITCH L xu Ww D eee BLK BLK BLK LN x E A ONLY 120V WHT ALL OTHERS BLK Fig 58 42C S V except VG and 42D 600 1000 cfm 2 Pipe Heating and Cooling with Auxiliary Heat Remote Wall Mounted Thermostat Line Voltage and Dual Power Source THERMOSTAT 33CSSN2 FC RS 5 RS G Yi G3 Wi G2 C H20 o o o o o o o o o o o 9 9 9 SS 69 69 9 S SG DUCT SENSOR 33CSSEN DS J CHANGE OVER E m m lt SENSOR ZEEE BE RL T VALVE BLK E QUICK CONNECT RED ZA L 4 3 BLOWER moron wer 1 EQUIPMENT GROUND L1 L2 or N L1 LIMIT SWITCH qm coNTAGTOR a EQUIPMENT GROUND ELEC HEATER Fig 59 42SG SH SJ VA VB VC VE VF 2 Pipe Heating and Cooling with Auxiliary Heat Unit Mounted Debonair Thermostat 24 v Duct Sensor and Dual Power Source 60 TASTAT RS 5 RS R G G3 C H20 S90 90 9 99 O9 SG 2 2
17. Hydronic Heating Only 2 Pipe Hydronic Cooling Only 2 Pipe Hydronic Cooling with Total Electric Heat 4 Pipe Hydronic Cooling and Heating NOTE A 1 in bypass line is included in the piping pack age when a 2 way valve is specified with a control package containing an automatic changeover device MOTORIZED 2 WAY VALVE BALL VALVE LEGEND Ball Valve ra Motorized 2 Way Valve Fig 44 Two Way Motorized Control Valve Package The 2 way motorized valve motor drives valve open and a spring returns valve to normally closed position no water flow through coil with unit OFF The aquastat bleed bypass bleeds a small amount of water from supply to return when control valve is closed required for system water temperature sensing by aquastat Aquastat A clips on supply line upstream from aquastat bleed bypass as shown at right It senses system water temperature to prevent cooling operation with hot water in system piping or heating operation with chilled water in system piping Additional aquastat required to lock out the optional auxiliary electric heat when hot water in system Supply and return connections at coil will be swage fit for field braze standard or unions option Check job specifications for system pressure pressure drop limitations and flow rate prior to owe valve components or valve package size 1 2 in 3 4 in etc 2 PIPE SYSTEM One Valve Package Applicati
18. 42C D S V Series Fan Coil Air Conditioners Installation Start Up and Service Instructions CONTENTS Page SAFETY CONSIDERATIONS 1 1 PHYSICAL DATA 1 3 PRE INSTALLATION 3 39 Unpack and Inspect Units 3 Protect Units From 3 Prepare Jobsite for Unit Installation 3 Identify and Prepare Units 3 40 67 Step 1 Place Units in Position 40 42C UNITS 42V UNITS 42D UNITS 42S UNITS Step 2 Make Piping Connections 42 VALVE PACKAGES e 42C D V DRAIN CONNECTIONS e 42C D V WATER SUPPLY RETURN CONNECTIONS e 42C D V STEAM CONNECTIONS e 42C D V DIRECT EXPANSION DX REFRIGERANT PIPING TEST AND INSULATE Step 3 Make Electrical Connections 55 STANDARD WIRING PACKAGES Step 4 Make Duct Connections 66 Step 5 Frame and Finish Unit 66 Step 6 Cut out Openings for Grilles and 67 Step 7 Final Preparations 67 STAHTSUP cc conis acte ache ORC pirr Ene E VP ETE 67 SERVICE 67 68 Excessive Condensation on Unit 67 To Clean
19. Copyright 2009 Carrier Corporation ER do ISd 4 Hnia Hhi8 4 35VI10A Hhig SLIVM N49 H1 iiia t vo a oip asl o t i erem asa mso in uu visas iaon ONILV3H ONITOO9 HOLOIN GNV AD e ueuagjure y Jeuonipuo senes Catalog No 04 53420004 01
20. LEGEND CR Cold Water Return CS Cold Water Supply D Drain HR Hot Water Return HS Hot Water Supply S SDN FRONT VIEW ITEM QTY i 2 1 3 3 5 4 1 5 1 6 24 7 1 8 1 10 1 11 1 12 1 13 2 15 1 16 2 4 17 1 18 i 19 20 1 21 1 22 1 23 1 24 1 Factory Installed TTField Installed Al risersare tangent to back plate TOP VIEW 5 127 DERHEHE FHH H 4 12 0 0 8 T NOTE 7 a 6 11 lt 88 2558 10 9 2 Lu 8 HH un a m SIDE VIEW Drawing provided for reference only Dimensions may vary with options ordered NOTES 1 Units are fabricated of 18 gage galvanized steel with a 16 gage galvanized fan deck painted with Arctic White 2 3 speed switch and thermostat are unit mounted 3 Risers are piped to coil with valves as specified 4 Blower motor valves coil and filter are accessible through the return air opening 5 Unit is insulated with coated fiberglass 6 Control box is insulated with 1 2 insulation for unit mounted controls 7 Riserlength floor to floor 2 in maximum riser length 115 inches 8 Maximum riser size is 21 5 in diameter If larger sizes are required please consult the factory 9 Expansion loops in hot water heating circuits as required 10 9 x 21 4 in slot is provided in the inside back panel for coil connection pe
21. WHT WHT COM ds BRN LIMIT SWITCH m ELEC HEATER Fig 64 42C S V except VG and 42D 600 1000 cfm 2 Pipe Cooling with Total Electric Heat Remote Wall Mounted Debonair9 Thermostat 24 v and Dual Power Source 63 Thermostatic Valve Control 4 Pipe The 4 pipe system provides the ultimate in economy and room temperature con trol Both hot water and chilled water are available at any time Normally an automatic changeover thermostat is used but a manual changeover thermostat is also suitable Two 2 way valves two 3 way valves or one 2 way plus one 3 way valve must be selected An automatic changeover device to sense water temperature is not required A120 V WHT ALL OTHERS BLK NEC CLASS 1 WIRING With this system the fan runs continuously unless it 1s manually switched to OFF position Fan must be on before thermostat can send signal to open the chilled water or hot water valve NOTE Wiring diagrams are for 120 v power supply If other voltages for heaters or controls are specified wiring may differ from that shown See Fig 65 and 66 for line voltage control See Fig 67 and 68 for 24 v control
22. 3 76 1 1 2 1 5 8 7 5 8 41 194 3 4 9 1 4 19 T 235 FILTER RETAINER as RIGHT SIDE VIEW NOTES 1 Right hand unit shown left hand unit opposite Coil connection locations are g in Unit sizes 02 and 03 have one motor one blower sizes 04 through 08 have one motor 2 blowers sizes 10 and 12 have 2 motors 4 blowers Standard 3 row coil shown Optional unit mounted switch box and controls when specified are installed on opposite side from cooling connections Not shown 3 speed fan switch wall plate 1 gt fiberglass insulation on inside of casing closed cell foam on main drain pan Units have galvanized finish For optional coil connections view 42 203 1 using the Fan Coil Builder Dimensions shown in inches mm QTY UNIT E A Eo s FACE AREA sq ft 1 1 2 2 2 4 4 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 15 42VA Furred In Vertical Unit Dimensions 18 TOP VIEW 1 1 2 5 1 2 2 38 140 51 12 13 8 9 1 4 a E 235 Em X NE MOS UAR UA UR UA UR GU UAR GR UR wm m m n n mil 11 3 4 C 298 mI E 701 n 1 see M ET EN 9 4 H wa 18
23. 67 42SG SH SJ VA VB VC VE VF 4 Pipe Heating and Cooling Unit Mounted Debonair Thermostat 24 v and Duct Sensor 65 REMOTE DEVICE BOX RS 5 RS R G o o o Y1 o THERMOSTAT 33CSSN2 FC G3 W1 G2 H20 9 9 SO 9 S 9 9 06 69 GS _ ST T S o o o NEC CLASS 2 WIRING D Q PUR und YEL 1 VALVE BLK 2 G3 Y COM HEAT ax 96 a EQUIPMENT GROUND ii amp L2 orN L nid 134 QUICK CONNECT BLK Fig 68 42C S V except VG and 42D 600 1000 cfm 4 Pipe Heating and Cooling Remote Wall Mounted Debonair Thermostat 24 v Step 4 Make Duct Connections Install all ductwork to and from unit in accordance with all applicable codes Duct construction must allow unit to operate within duct external static pressure limits as shown on job submittals Units designed to operate with ductwork may be damaged if operated without intended ductwork attached Units provided with outside air should have some method of low temperature protection to prevent freeze up Insulate ductwork as required Use flexible connections to minimize duct to unit alignment problems and noise transmis sion where specified Set unit markings for minimum clearance to combustible materials and first 3 ft of ductwork Install ductwork accessory grilles and plenums so that they do not restrict access to filter
24. Cut openings for supply air and return air grilles thermostats and switch plates where specified on Job drawings Be careful not to cut wires piping or structural supports Use a steel ther mostat shield ring to protect drywall from thermostat wiring where applicable N CAUTION Prevent dust and debris from settling in unit If wall finish or color is to be spray applied cover all openings to pre vent spray from entering unit Failure to do so could result in the reduction of unit efficiency Step 5 Frame and Finish Unit Models 425 SH and SJ have factory enclosures and may be finished with normally accepted wall covering However drywall secured with adhesive bonding alone is not recommended Use low profile sheet metal panhead screws to secure wallboard to unit frame Do not apply sheet metal screw or nails where they can pen etrate coil riser pipes or electrical junction box and raceways 66 Do not secure wallboard to drain pan edges or to control box enclosure Condensate leaks or electrical shorts may result An alternate method of enclosing the unit is to frame one or more sides with studding and apply the wall board to this fram ing This method requires specific unit features and return ac cess panels when used on the return air side of a unit Units not properly equipped will exhibit poor cooling and or heating per formance and could experience excessive or premature compo nent failures Prev
25. LEGEND NOTES 1 Standard Stamped Supply Grille 1 Right hand unit shown left hand unit opposite Coil connection 2 Access Door Fan Switch locations are x 5 g in m 5 i 2 Unit sizes 02 and 03 have one motor one blower sizes 04 enn sin D through 08 have one motor 2 blowers sizes 10 and 12 have 5 Drain 3 4 2 motors 4 blowers 6 Filter 3 Standard 3 row coil shown u 7 Air Vent 1 g in 4 Cabinet has an Arctic White baked finish 8 Front Panel Fastener 2 ie wir 1 in e insulation on inside of casing i insi i closed cell foam on main drain pan 10 DaFan 6 For optional coil connections view 42VA 203 1 using the Fan 11 Wall Mounting Holes 3 4 in Diameter Coil Builder T 12 Flexible Conduit 7 Malve package is factory installed inside the cabinet when 13 Fan Switch 3 speed ordered with the unit based on component size 14 Access Doors 8 Dimensions shown in inches mm UNIT NOM DIMENSIONS in QTY UNIT FACE AIRFLOW AREA SIZE m B c p j E Blower Motor sam 41 22 1 1 2 2 2 4 4 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 17 42VF Vertical Cabinet Unit with Slant Top Dimensions 20 TOP VIEW E A E OE FRONT VIEW 3 ti 152 152 mmu 178
26. OPTIONAL REAR RETURN 22 1 2 7 8 11 572 21 1 2 546 13 15 16 354 13 RIGHT SIDE VIEW NOTES 1 Dios conc DIMENSIONS Right hand unit shown left hand unit opposite Coil connection locations are 5 g in Unit sizes 04 thru 08 have one motor 2 blowers size 10 has 2 motors 4 blowers to above figure for configuration of filter and track if installed in optional plenum Dimension increases by 4 in with optional electric heat Not shown 3 speed fan switch wall plate 1 2 fiberglass insulation on inside of plenum when installed closed cell insulation on main drain pan Units have galvanized finish For optional coil connections view 42CA 203 1 using the Fan Coil Builder Dimensions shown in inches mm QTY UNIT FACE AIRFLOW AREA ER Rem ERE Sq ff Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 5 42CF Furred In High Static Horizontal Unit with Plenum Dimensions FILTER RETAINER 29 D TOP VIEW ELECTRICAL KNOCKOUTS IN TOP amp BOTTOM OF CONTACTOR BOX LEGEND 1 Junction Box Installed with Plenum 2 Plenum 3 Flexible Metal Conduit 4 Mounting Bracket 5 Electric Strip Heater Element 6 Drain Conn g in OD 7 Drip Lip optional shipped loose 8 Tell Tale Drain Conn 5 g in OD optional 9 Filter 10 Return Duct Co
27. Other methods of control which avoids condensation prob lems are as follows 1 Continuous fan operation with motorized chilled water valve controlled by a thermostat 2 Continuous fan operation with thermostat control to switch fan from high to low speed instead of off To Clean Coil 1 Be sure electrical service switch is open locked and tagged while working on unit 2 Remove return air grille access panel and brush between coil fins with stiff wire brush Follow up by cleaning with vacuum cleaner If coil is cleaned with air hose and nozzle take care not to drive dirt and dust into other components 3 Install clean filter Refer to Clean or Replace Air Filters section Coil Air Vent Manual or Automatic Turn vent cap clockwise closed while filling system turn counterclock wise open to vent air Tighten clockwise after venting Turn automatic vent cap slightly counterclockwise until water leaks at about 10 drops per minute Leak will stop within one half minute Check Drain Lock open and tag unit electrical service switch Check drain pan drain line and trap at start of each cooling season A standard type pipe cleaner for 3 4 in ID pipe can be used to ensure that pipe is clear of obstruction so that conden sate 1s carried away Check the drain line at filter cleaning time during the cooling season Be sure that debris has not fallen into unit through supply air grille Fan Motor Bearings Lo
28. inches 2 Standard 4 row coil shown Other coil option dimensional data available on request 3 Sizes 06 08 and 10 have one motor one blower Sizes 12 through 20 have 2 motors 2 blowers 4 Supply and return connections terminate within unit when valves are factory installed 5 For optional coil connections view 42DD 203 1 using the Fan Coil Builder 6 Fan switch and wall plate are not shown 7 Galvanized finish provided as standard 8 Units with internal factory valve packages have external connections located in triangular section above coil 9 Consult Carrier for ducted front return air and external filter rack with 1 in duct collar and throwaway filters Units with electric heat require additional access on the side of unit for servicing contactor box With bottom return access to filter is through the front access panel Dimensions are in inches mm Fig 25 4200 Vertical Unit with Full Casing and Electric Heat Dimensions 28 34 864 zu m HANGER SLOTS B 7 Pi 7 8 22 1 1 2 38 DIA DIA KO 5 9 229 6 1 2 3 15716 16 100 1 3 8 35 203 203 4 5 TOP VIEW PARTIAL REAR VIEW TYP BOTH SIDES FRONT VIEW RIGHT SIDE VIEW LEGEND NOM DIMENSIONS 1 8 QTY UNIT UNIT UNIT 1 Motor Junction Box AIRFLOW WEIGHT Slots in x 2 in 06 J 3 15 15 8 1 1 150 3 Auxiliary Drip L
29. switched to OFF position Fan must be on before thermostat can send signal to open chilled water valve or turn on electric heater FLAY COIL LE RELAY P N TER REFERS 706654 Two control methods are available 1 Use the standard automatic changeover thermostat with a dead band between heating and cooling 2 Use a manual changeover thermostat With this method only one changeover 1 required Be sure to include a 2 way or 3 way electric valve with this system NOTE Wiring diagrams are for 120 v power supply If other voltages for heaters or controls are specified wiring may differ from that shown See Fig 57 and 58 for line voltage control See Fig 59 and 60 for 24 v control 01 02 03 04 06 07 08 09 24 20 208 240 277 05 10 MITT 044 nig A120 V WHT ALL OTHERS BLK L A lt SIAI wW A 27 m 4 a D 2 w A zt LV3H and 1009
30. 12 18 6 16 t2 20 1 2 18 46 000 Mer Blower 120 2 8 18 16 24 1 3 22 54 Motor 3 Speed PSC with Quick Connect 2 Access Panel Control Box 2 TUnit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Control Opening Surface Mount Stat 2 Duct Collar 1 gt Extension Typical 1 2 3 Supply Air Opening s 1 2 3 Factory Installed TTField Installed Fig 30 425 Back to Back Furred In Stack Dimensions 33 3 76 3 5 8 92 IHR HS D CR c SGM 4 PIPE OPTION m LEGEND CR Cold Water Return CS Cold Water Supply D Drain Hot Water Return HS Hot Water Supply R Return S Supply FRONT VIEW ITEM DESCRIPTION QTY i 2 3 5 3 1 4 1 5 2 4 6 1 7 8 1 9 i 10 i 11 2 12 1 13 1 14 2 4 15 1 16 1 18 1 19 1 20 1 21 1 22 vais 23 1 2 3 Factory Installed TTField Installed 3 5 8 92 TOP VIEW Allrisersare ent to back plate 2 T 3 76 13 LI B 3 12 11 2 4 T p 5 10 88 2558 9 NOTE 7 63 54 1600 13 2 m 2 7 f E 5 127 5 127 SIDE VIEW Drawing provided for reference only Dimensions may vary with options ordered NOTES Units are fabricated of 18 gage galvanized steel with a 16 gage galvanized fan deck risers ar
31. Ball valves may be used as shutoff valves START UP Start up procedures vary depending on time of year sum mer or winter and building characteristics new building old building occupied unoccupied etc Start up in the cooling mode requires that proper care be given to avoid condensation problems Condensation forms on surfaces that are colder than the dew point of the surrounding air If a unit 1 started and is piped with low temperature chilled water in a hot humid atmosphere condensation will form on many parts of the unit In order to avoid excessive condensa tion higher temperature water should initially be used approx imately 65 to 70 F and set the fan coil control at low or medi um fan speed Be sure the fan current does not exceed motor nameplate values Also the building should be as completely closed as possible and outside air supply fans and bathroom and kitchen exhaust fans should be off As the building temperature drops the chilled water temper ature can be gradually reduced until it reaches 50 F At this point the outside air fans can be turned on When the chilled water temperature is reduced to its design point the exhaust fans can be turned on SERVICE Excessive Condensation on Unit Running chilled water through a fan coil unit with the unit fan off can cause excessive condensation If fan cycling is used a water flow control valve should be installed to shutoff the water when the fan stops
32. FRONT VIEW RIGHT SIDE VIEW LEGEND unit UNIT yr Motor Blower Assembly Electric Strip Heater Element optional Auxiliary Drip Lip Optional Shipped Loose Tell Tale Drain optional AIRFLOW WEIGHT E pne o 25 4 i 7 7 so s 19 13 22 3 1 79 10 tooo s 42 25 ww 26 31 1 9 Vent eo a7 25 ww s 2 2 10s 8 Supply a 340 42 s2 iw ae sri 2 2 9 10 Return Connection e 1600 ar se s 19 n a 2 2 11 Mounting Holes four yin diameter have 8 380 s2 e 45 iw arb 2 2 ud eae 20 200 se ee ar 145 so sr 2 gt 151 weights are based on dry coils and minimum rows Weights exclude packaging valves and other components NOTES Right hand unit shown left hand unit opposite Coil connection locations are 5 inches Sizes 06 08 and 10 have one motor one blower sizes 12 through 20 have 2 motors 2 blowers Standard 4 row coil shown Other coil option dimensional data available on request For optional coil connections view 42DA 203 1 using the Fan Coil Builder Fan switch wall plate not shown Galvanized finish provided as standard Dimensions are in inches mm _ ONOUBRWON TES HUI AI Tt Fig 23 42D
33. a SE ne ms 7 8 22 KNOCKOUT 1 1 2 38 KNOCKOUT 1 TYPICAL PARTIAL REAR VIEW TYPICAL BOTH SIDES A 1 1 2 6 1 8 1 1 4 38 32 38 1 1 2 1 1 2 38 38 1 DUCTED SUPPL 1 25 FELTER B AIR R RETURN 12 305 286 MIN 14 356 TS 25 SUPPLY 5 BOTTOM RETURN AIR PANEL 7 8 22 O D CONDENSATE FRONT VIEW DRAIN RIGHT SIDE VIEW CONNECTION NOTES 1 Right hand unit shown left hand unit opposite 2 Internal factory valve package and drains may not align with cabinet knockouts 3 Dimensions shown in inches mm All dimensions are x 1 4 in 4 Bottom panel is Arctic White polyester powder coat paint UNIT NOM DIMENSIONS QTY UNIT REAR RETURN de 6 1 7x21 03 6 1 7x21 04 6 2 7x27 06 7 2 7 x 88 08 7 2 7 x 88 10 7 4 7 x52 12 7 4 7 x52 Fig 12 42CK Horizontal Cabinet Unit with Telescopic Access Panel Front Supply Rear Return and Heater Dimensions 15 25 1 1 2 38 1 5 36 914 30 3 4 781 a 1 1 2 38 1 2 38 1 TOP VIEW v PARTIAL REAR VIEW gt TYPICAL BOTH SIDES 34 B64 30 3 4 781 mm 15 FRONT VIEW RIGHT SIDE VIEW LEGEND NOTES 1 Junction Box 4 in x 4 in 1 Right hand RE shown left hand unit opposite Coil connection ir Lin shinpe locations are 5 g in m t 2 Unit sizes 02 and 03 have one motor one blower size
34. all drywalling and painting is complete install thermostats supply air grilles and return air panels 7 Attach unit risers N CAUTION Toxic residues and loose particles resulting from manufac turing and field piping techniques such as joint compounds soldering flux and metal shavings may be present in the unit and the piping system Special consideration must be given to system cleanliness when connecting to solar domestic or portable water systems Failure to heed this warning could result in equipment damage NOTE The supply and return connections are marked on the coil stub outs and the valve package with an 45 meaning supply or inlet and R meaning return or outlet indicating flow direction to and from the coil Blue letters mark the chilled water connections and red letters mark the hot water connections a Each riser has a 3 in swaged portion at top and sufficient extension at bottom for an inserted length of approximately 2 in This unit to unit joint is NOT intended for full bottoming in the joint but allows for variations in floor to floor dimensions and for correct riser positioning If job requires that unit risers be supplemented with between the floor extensions pieces may be field supplied or factory supplied If factory supplied insulation is also provided b Level unit to ensure proper coil operation and condensate drainage Proper riser installation and vertical positioning in the unit p
35. as follows OFF H High Speed M Medium Speed L Low Speed Rotate knob clockwise to desired speed To turn off rotate knob counterclockwise to OFF 8 Be sure drain line is properly and securely positioned and that the line is clear Pour water into drain to check operation 9 Vent all air from unit coil and related piping If air vent is manual release air from system by turning air vent screw 11 5 turns counterclockwise with screwdriver When steady steam of water begins to escape close valve If air vent is automatic trapped air will be vented automatically Vent release air slowly usually dripping water into drain pan in the process Make sure all service valves are open and that the motor ized control valves if supplied are set for automatic operation 10 Check all control valves in the system for proper opera tion in accordance with valve manufacturer s instructions 11 For units with factory installed balancing valves adjust as follows a Butterfly Valves Turn valve gate by inserting screwdriver into slot in valve top and rotating up to 90 degrees Valve is fully open when slot is par allel with valve body When slot is perpendicular to body flow through valve is at minimum Valve does not seal against flow a Ball Valves with Lever Handles Valve gate action is similar to butterfly valves above except that when handle is perpendicular to valve body 67 there is no flow through valve
36. available on 2 lowboy units Fig 50 Manual Fan Control Thermostatic Fan Control 2 Pipe Systems The thermo stat cycles the fan on and off from any selected speed setting to maintain selected room temperature Controls can be wired for heating only cooling only or for heating cooling by the addi tion of an automatic changeover device that senses water tem perature and changes the action of the thermostat as required See Fig 51 UNIT SWITCH BOX 3 SPEED SWITCH THERMOSTAT AQUASTAT TWO MOTORS WIRED IN PARALLEL UNIT MOUNTED REMOTE MOUNTED SWITCH BOX BY OTHERS 4H x 2d iN THERMOSTAT POWER RIT AQUASTAT SUPPLY NOTE 3 L WHT UNIT JUNCTION BOX TWO MOTORS WIRED IN PARALLEL WALL MOUNTED NOTES 1 Motors are thermally protected 2 Use copper conductors only 3 See unit nameplate for power supply Provide disconnect means and overload protection as required 4 Unit mounted thermostats are not recommended for fan control because of poor temperature sensing Fan control not available on 42VC VE lowboy units Fig 51 Thermostatic Fan Control 2 Pipe System 56 Thermostatic Fan Control 2 Pipe System with Safety Cycle This control is used for high humidity situations in which condensate problems can occur if fan is turned off while chilled water is still running through the coil The wiring provides fan cycling from HIGH to LOW on the co
37. fittings required when used for water balancing BALL VALVE WITH MEMORY STOP Manual balance and shut off valve Application Used for unit isolation and water flow balancing The adjustable memory stop feature allows return to the balance point after shut off Check specifications for 200 NO 200 YES 200 N A service fittings required when used for water balancing LEGEND irs Cv Coefficient of Velocity Motorized 2 way valves have a maximum close off differential _ of 25 psi UA Drock Expansion 2 Motorized 3 way valves have a maximum close off differential Check all system component pressure ratings coils values of 10 psi pumps etc with manufacturer and any applicable local or national piping codes prior to specifying system pressure rating 52 Table 5 Piping Components cont GUMHODSKETCH DESCHIETION Cy FACTOR RATING STEAM hin PSI F USE 2 WAY MOTORIZED VALVE Electric 2 position flow control valve open closed Normally closed body with manual override lever Installed in supply line to unit Application All standard control and valve pack ages are based upon normally closed valves valve YES electrically powered open and closed by spring 15 return when electric power removed Manual 2 3 2 3 300 200 PSI override lever allows valve to be placed in the open MAX position for secondary unit flushing constant water flow prior to start up etc Manual overri
38. please consult the factory 9 Expansion loops in hot water heating circuits as required ole 10 9 x 21 4 in slot is provided in the inside back panel for coil connection penetration to permit expansion Filter Throwaway 1 in 1 and contraction of risers Care must be taken to position the risers so that coil connection is at center of slot Return Air Opening 1 11 Drawing is pictorial see unit arrangements for actual supply and return air orientation 12 All dimensions are in inches Air Vent Manual 1 Molex Connector for Field Installed Stat 1 E 5 DIMENSIONS in m Sle svppy Dowe Suey a wm Ib US Riser Drain Copper 1 1 1 o3 30 14 8 6 j t4 10 t7 P fuo tV 14 180 Return Air Blockoff Panel Optional 40 14 12 14 6 14 10 17 iUo 12 14 225 1 o 60 18 10 18 6 t6 12 20 1 2 18 240 eee OE xu io tooo j espepepesse ontrol Opening Surface Mount Stat 1 22 8 j 8 t6 24 1 3 2 305 Supply Air Opening s 1 2 3 TUnit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Factory Installed TTField Installed Fig 28 42SG Furred In Stack Dimensions 3l 3 5 8 92 21 1 1 OOOOO THR HS D CR CS SHA 4 PIPE r a 24 23 22 21 20 18
39. separation spotted over the wall control lines If not already installed install the floor and ceiling tracks up to and over the 42SJ fan coil unit Position the vertical studs and fasten into each of the stud pockets formed into the chase side panels see Fig 38 NOTE The studs may be mechanically fastened to the 42SJ fan coil Care should be taken how ever not to penetrate the supply or return water risers or internal piping Given the levelness of the floor and or the fan coil assembly some shimming may be necessary Assemble the specified wall construction up to and over the top of the fan coil unit see Fig 39 With the fire wall separation being complete the drywall skin on the surface of the individual fan coils can be applied Drywall can be applied directly to the surface or if necessary studding may be installed on the corners for vertical control see Fig 39 For ease of installation of the access panel apply drywall on the return air side directly to the sur face of the unit see Fig 39 When applying the wall board directly to the unit cabinet it may be necessary to shim the wall board in some areas to achieve the desired finished wall surface INSTALL WALL GYPSUM BOARD TO WALL AND OVER TOP OF WALL STUDS INSTALL GYPSUM INSTALL BOARD TO GYPSUM UNIT SIDES BOARD TO FACE OF UNIT WITH CUT OUTS FOR SUPPLY RETURN AND THERMOSTAT Fig 39 42SJ Unit Installation h After
40. water flow balancing Positive shut off ball valve feature allows usage as combination balanc ing and shut off valve BALANCE VALVE Variable water flow man ual balancing valve with screwdriver slot adjustment screw Application Often used in conjunction with test port fittings for water flow balancing Bal ance by temperature differential or coil pres sure drop check specifications for service fittings required if balancing by pressure drop May be used in 3 way valve bypass line to permit equal flow balancing FIXED FLOW VALVE Flexible orifice type 250 N A NO 4 2 3 250 1 200 NO non adjustable Application Used for water flow balancing Valve automatically adjusts the flow to within 1096 of set point Requires 15 psi 35 ft of additional pump head for proper operation determines Cy fac tor The orifice of these fixed flow valves changes as flow is regulated As the water pres sure increases 00 00 00 50 150 60 NO the orifice size decreases thereby automati cally limiting the flow rate to the specified 10 LEGEND NOTES Cv Coefficient of Velocity 1 Motorized 2 way valves have a maximum close off differential COR of 25 psi DA 2 Motorized 3 way valves have a maximum close off differential Check all system component pressure ratings coils values of 10 psi pumps etc with manufacturer and any applicable local or n
41. 22 gt Cag 139758 CAN WA NV 3 OPTIONAL GR BLKI l Q C e w YEL 2 gi kl lt j VALVE E NOTE Units may have 2 or 4 elements Elements wired in parallel UND REQUIRED W O OPTIONAL SER SWITCH AAA pepe uc were Fig 63 42S8G SH SJ VA VB VC VE VF 2 Pipe Cooling with Total Electric Heat Unit Mounted Debonair Thermostat 24 v and Duct Sensor VALVE REMOTE DEVICE BOX RS 5 RS R Yi W1 G2 THERMOSTAT 33CSSN2 FC C H20 1 9 9 999996966 SE zl NEC CLASS 2 WIRING EQUIPMENT Q2 GROUND EQUIPMENT Q L1 TAA L O E E 9 33ZCRLYBRD VALVE COOL T c MED HI QUICK CONNECT L2o N GROUND 1 2 RED RED L lt BLU BLU M BLK BLK H MOTOR
42. 33 4 42DF 14 x 14 14 x 20 14 x 24 Qty SUPPLY DUCT COLLAR PIPING CONNECTIONS Sweat 4 Row Inlet in OD 5 8 Outlet OD 5 8 1 6 2 1 2 5 3 0 3 5 4 1 4 6 2 2 14 35 14 40 14 45 14 50 14 x 54 123 x 35 123 4 x 40 123 4 x 45 123 x 50 123 x 54 123 4 x 34 123 4 x 39 123 4 x 44 123 4 x 49 123 x 53 14 x 283 4 14 x 333 4 14 x 383 4 14 x 433 4 14 x 473 4 14 x 28 14 x 34 14 x 38 14 x 44 14 x 48 11 g 11 8 Calculate Operating Weight of unit Shipping Weight Coil Water Weight x Number of Coil Rows Table 4 Physical Data 42S Series Units UNIT SIZE 425 0 a 06 o 10 12 NOMINAL AIRFLOW cfm __ 40 60 80 1000 1200 SHIPPING WEIGHT Ib 42SG SU 180 225 240 260 280 305 42SH 202 247 262 286 311 336 425 360 450 480 520 560 610 WATER WEIGHT Approx Ib per row of coil COILS FPI MOTOR qty 42SG SH SU 1 1 42SJ 2 2 BLOWER qty 42SG SH SU 1 1 42SJ 2 2 FILTERS Nominal Size in 1 in thick Qty PIPING CONNECTIONS Inlet in OD 121 5 X 241 4 14 fins inch 1 1 1 1 2 2 2 2 1 1 1 1 2 2 2 2 161 X 263 4 201 5 X 29 4 11 1 5 Calculate Operating Weight of Unit Shipping Weight Coil Water Weight x Number of Coil Rows 14234 units require two filters PRE INSTALLATION Unpack and Inspect Units Remove shipping wraps from all units Check the shipment against shipping order Make sure that furnished only items such as thermostat gr
43. 4 D 2 E B MOTOR BL BLK BL 3 AB Us E 5 z v YEL dA SERVICE co ORG SWITCH 2 UPTIUNAD 2 FUSES 1 i CBPTIDNAL LI dE uer m BER d all Ag Y wie XFORMER EQUIPME 208 240 BLK WHT L GROU KA NLY N EQUIPME gt 2 GROU GROUND REQUIRED OPTION W O SER SWITCH Fig 55 42SG SH SJ VA VB VF 2 Pipe Heating and Cooling with Automatic Changeover Unit Mounted Debonair Thermostat 24 v Duct Sensor E LE B Beto RS R G Yl G3 Wi Ge C H20 cK 9 9 9 S SS SS S SR Q C RG ORG 5 BLK BLK NEC CLASS 2 WIRING a w w w 5 5 5 c RED RED _ NC BLU 44 BLU WE
44. 5 10 x 28 10 x 321 2 10x 37 10 x 41 10 x 541 5 10 x 63 Rear Return 8 x 231 5 8x28 8 x 321 2 8x37 8x41 8 x 541 5 8 x 63 42CK Bottom Return 10 x 28 10 x 28 10 x 33 10 x 45 10 x 45 10 x 62 10 x 62 Rear Return 7x21 7x21 7x27 7x38 7x38 7x52 7x52 Rear Return with Duct Collar 6 x 183 4 6 x 183 4 6 x 243 4 6 x 353 4 6 x 353 4 6 x 493 6 x 493 4 Qty 1 1 1 1 1 1 1 SUPPLY DUCT COLLAR 1 in PIPING CONNECTIONS Sweat in Coil Outlet and Inlet 5 3 OD Drain Connection 7 8 OD Tell Tale Drain 5 8 OD TtFilter size if located in return air plenum With electric heater and bottom return the 42CF unit filter width increases from 123 4 to 163 4 Calculate operating weight of unit shipping weight coil water weight x number of coil rows T42CF applies to sizes 04 to 10 Filter size for return air grille location Table 2 Physical Data 42V Series Units 01 02 04 06 o 10 12 150 20 30 400 60 800 1000 1200 UNIT SIZE 42V NOMINAL AIRFLOW cfm SHIPPING WEIGHT Ib 42VA 65 80 90 112 115 140 170 42VB 89 95 116 134 137 169 192 42VC 50 60 72 110 42VE 72 100 108 154 42VF lt 92 98 122 141 144 178 205 42VG 40 74 me COIL WATER WEIGHT Approx Ib per row of coil 42VA VB VF 42VE 42VG 0 4 COILS FPI 12 fins inch Coil Face Area sq ft 0 8 0 8 1 1 1 4 1 9 2 3 3 2 3 7 MOTOR qty 42VA VB VF 1 1 42VC VE 1 1 1 2 NE 42
45. 6 406 12 305 496 x 305 20 508 1 25 2 51 18 457 9 679x 25 10 560 254 22 x 16 18 x 16 201 5 x 291 4 x 1 gt 22 559 16 406 559 406 18 457 16 406 457 x 40e 24 610 1 25 3 76 22 559 743 x 25 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components UNIT N Fig 34 42SU Universal Furred In Stack with Heater Dimensions 37 PANEL DIMENSIONS in PANEL NO A 15 5 19 5 23 5 15 5 19 5 23 5 15 2 19 2 23 2 15 5 19 5 23 5 15 1 19 1 23 1 15 5 19 5 23 5 15 2 19 2 23 2 55 3 10 NOTE Dimensions in inches PANEL NO 1 PANEL NO 2 PANEL NO 3 61 1 60 4 PANEL NO 6 PANEL NO 7 PANEL NO 8 PANEL NO 10 Fig 35 Return Air Wall Panels for Furred In Units Panels with No Frame 38 PANEL AND FRAME DIMENSIONS in PANEL NO UNIT SIZE A 15 1 4 19 1 23 1 15 1 5 19 1 23 1 15 1 9 19 1 23 1 NOTE Dimensions in inches 60 4 54 7 PANEL NO 4 PANEL NO 5 PANEL NO 9 Fig 36 Return Air Wall Panels for Furred In Units Panels with Frame 39 INSTALLATION Step 1 Place Units in Position 42C UNITS 1 Select the unit location Allow adequate space for free air circulation service clearances piping and electrical connections and any necessary ductwork For specific unit dimensions refer to Fig 1 14 Allow cleara
46. 70 wmon _ O Mm f 22 MOUNTING HOLES ALTER RETAINER FRONT VIEW RIGHT SIDE VIEW LEGEND NOTES 1 Standard Stamped Supply Grille 1 Ee left hand unit opposite Coil connection E 8 5 na Sein pA 2 Unit sizes 02 and 03 have one motor one blower sizes 04 through 4 Return Conn 5 s in OD e motor 2 blowers sizes 10 and 12 have 2 motors a E 3 Standard 3 row coil shown 7 Air Vent g in 4 Cabinet has an Arctic White baked finish 8 Front Panel Fastener 5 Stamped supply grille standard Optional single or double deflec 9 Drain Pan Auxiliary Au ed Loose tion grilles available 10 Wall Mounting Holes 4 Bia in Diameter 6 Shee anon insulation on inside of casing closed 11 Flexibl it 7 0 coil connections view 42VA 203 1 using the Fan Coil 8 Dimensions shown in inches mm UNIT NOM DIMENSIONS in QTY UNIT FACE AIRFLOW AREA MEE LI i 02 1 03 1 04 2 06 2 08 2 10 4 12 4 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 16 42VB Vertical Cabinet Unit Dimensions 19 ae oiu a m 2 83 E 127 83 A TOP VIEW 13 14 8 9 HH M J L 10 222 MOUNTING HOLES 222 912 p 9 1 2 241 241 FILTER RETAINER FRONT VIEW CLIPS RIGHT SIDE VIEW
47. 8 10 A 11 FRONT VIEW RIGHT SIDE VIEW LEGEND NOTES 1 Fan Switch 3 Speed behind Access Door 1 Right hand unit shown left hand unit opposite Coil connection 2 Front Panel Fastener locations are 5 g in 3 Stamped Supply Grille 2 Unit sizes 02 through 04 have one motor 2 blowers size 06 has 3 Cabinet has an Arctic White baked finish 6 Stamped Return Grille 4 Height increases by 2 in with electric heat 7 Filter 5 Standard 2 row coil shown 8 Air Vent 1 o in 6 Not shown 1 5 in fiberglass insulation on inside of casing 9 Optional Valve Package inside cabinet 5 52 ram AERA pan 10 Drain Pan Auxiliary with 3 4 in Coil Eniilder COM CONDE CHONS VIOW sever Using ie TAN 11 Aes onnection 8 Valve package is factory installed inside the cabinet when ordered with the unit based on component size 9 Dimensions shown in inches mm NOM DIMENSIONS in QTYUNT AREA UNIT LLL etm ee eee Le Cfm Ib 02 200 72 03 300 100 04 400 108 06 600 154 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 20 42VE Cabinet Lowboy Unit Dimensions 23 TOP VIEW 2222222 lF EEEE arb arbo tte aaa he v I e FRONT VIEW RIGHT SIDE VIEW LEGEND NOTES 1 Fan
48. A Furred In Ceiling Unit with Electric Heat Dimensions 26 18 VIEW 12 OPTIONAL 29 1 2 REAR RETURN 25 28 1 2 42 3 4 724 TP m 11 0 9 j 16 3 8 SUPPLY 416 AIR AIR 14 15 1 1 4 14 uma 8 32 13 356 Gi FRONT VIEW RIGHT SIDE VIEW DIMENSIONS in x 1 8 QTY UNIT UNIT UNIT AIRFLOW WEIGHT 1 Motor Junction Box Opposite Piping sae amma gt Le o WES Pin 3 Mounting Clips Shipped Loose 06 60 23 32 14 1312 17 21 251 1872 1 1 94 4 Electrical Strip Heater Element optional 28 37 1 39 1392 022 26 30 23 1 1 107 57 1 Shipped Loose with 10 1000 32 42 23 141 26 341 27 1 1 150 6 Tell Tale Drain optional m 1200 a s 2e 35 0 2 2 2 a Brain Connection s oD 14 140 42 52 33 141 36 40 4414 37 2 2 2 174 9 Access Panel 16 1600 se se 19 a 45 49 2 2 178 10 Return Duct Collar 2 inches Ir ven In 18 1800 52 62 43 1415 46 50 5414 47 2 2 2 195 Return Connection 20 2000 ie IB EET TR D 8 220 13 Filter 1 in Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other 15 components NOTES Right hand unit shown left hand unit opposite Coil connection locations are 5 g inches Sizes 06 08 and 10 h
49. E BALL VALVE WITH MEMORY STOP MOTORIZED 3 WAY VALVE 2 BALL ONE WITH MEMORY STOP 1 3 WAY MOTORIZED COIL BALL VALVE lt lt BALL VALVE MOTORIZED 3 WAY VALVE GATE COIL SHUT OFF VALVE BALL BALANCING 3 WAY MOTORIZED COIL 2 1 1 MOTORIZED 3 WAY VALVE CIRCUIT SETTER MOTORIZED 3 WAY VALVE 1 CIRCUIT SETTER R S 1 3 WAY MOTORIZED COIL Fig 46 Three Way Motorized Control Valve Package 47 When isolation valves only are specified they will be brazed AIR VENT to the coil stub outs P Check job specifications for system pressure pressure drop lt limitations and flow rate prior to selecting specific compo nents or valve package size 1 2 in 3 4 in etc 2 PIPE SYSTEM ONLY One Valve Package Application __ R 2 Pipe Hydronic Heating Only BALL VALVE 2 Pipe Hydronic Cooling Only NOTES SEE NOTE 4 1 Continuous water flow chilled water or hot water 2 Not recommended for high humidity applications 3 Not recommended with unit mounted thermostat on 4 vertical units except package H The addition of any other component s will require swage fitting for field braze or optional union connection BALL VALVE SEE NOTE 4 5 WITH HAND VALVES ONLY LEGEND 2 BALL Balancing Valve Ball Valve Ball Valve with Memory Stop Circuit Setter Gate Shut Off Valve BAL
50. H 1V3H 1009 A ONLY 120V WHT ALL OTHERS BLK Fig 54 42C S V and 42D 600 1000 2 Pipe Heating and Cooling with Automatic Changeover Remote Wall Mounted Thermostat Line Voltage 57 1 STAT RS gt o RS R G G3 1 Ge C HED o 4 RED DUCT SENSUR P RED CHANGE VER SENS if WHT 7 22 N ORG gt L BLK BLK RG a 5 2 p RED RED _ T W RY BLU BLU YEL a TOR BL BLK O S6 N d WHT WHT SE er oL o 9 pepe Q Q C 277 577 PUR BLK x TEE lt lt EK VALVE RED RED 1 RED ip es x EMEN BLU BLU 3 o YEL w lt BLOWER BLU 5
51. IEW LEGEND NOTES 1 Junction Box 4 in x 4 in 1 Right hand unit shown left hand unit opposite Coil connection locations are x5 g in N RE Unit sizes 02 and 03 have one motor one blower sizes 04 through 08 A MUR Holes 4 E Grommel have one motor 2 blowers sizes 10 and 12 have 2 motors 4 blowers have 3 a Diameter Hole Cabinet has an Arctic White baked finish 5 Electrica Diameter Hefer to supply and return connections above for coil stub out locations 6 Return KO Diameter Not shown optional drip lip 3 speed fan switch wall plate 1 2 in fiber 7 Supply KO 4 icin Diameter glass insulation on inside of casing closed cell foam on main drain 8 DO ko 11 Diameter For optional coil connections view 42CA 203 1 using the Fan Coil 9 Supply Return Connections 5 OD MOMS is factory installed inside the cabinet when ordered with 10 Drain Connection 7 OD 11 Optional Valve Package inside cabinet 2 7 12 Filter 13 Standard Stamped Return Air Grille 14 Removable Hinged Access Panel 15 Supply Grille Stamped Standard a Oe NE Ro Is NOM DIMENSIONS in QTY UNIT FACE AIRFLOW AREA B c E Blower Motor sr 53 4 11 34 1 1 2 2 2 4 4 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 7 42CG Horizontal Cabin
52. L VALVE 1 BALL 1 GATE 50 1 1 Motorized 2 Way Valve When aquastat is used for automatic changeover bypass is OE required as indicated by dashed line NOTES 1 Packages factory furnished and installed 2 Valves are 5 g in ODS unless otherwise specified 3 If an automatic flow control valve is added it will be BALL VALVE located on supply line between shutoff valve and coil or 2 BALL gt motorized control valve if supplied 1 BALANCING BALANCING COIL VALVE BALL VALVE 1 BALL 1 CIRCUIT SETTER COIL 2 BALL 1 2 WAY MOTORIZED R MOTORIZED COIL 2 WAY VALVE BALL VALVE WITH MEMORY STOP MOTORIZED Q BALL VALVE 2 BALL ONE WITH MEMORY STOP 1 2 WAY MOT RIZED COIL Fig 47 Valve Package without Motorized Control 48 42C D V DRAIN CONNECTIONS Install drain line in accordance with all applicable codes A continuous pitch of in per 10 ft of condensate drain line run is necessary for adequate condensate drainage Insulate the drain line to prevent sweating Extend the drain line straight from the drain pan before making any turns The installer must provide proper support for the drain line to prevent undue stress on the auxiliary drain pan Install trapped drain line in accordance with all applicable codes see Fig 48 A drain trap may be required by local codes and is recommended for odor control The differe
53. LAR HINGED D d BOTTOM RETURN STAMPED RETURN AIR PANEL AIR GRILLE amp 7 8 22 O D 1 25 FILTER CONDENSATE FRONT VIEW DRAIN RIGHT SIDE VIEW CONNECTION Puce Right hand unit shown left hand unit opposite 2 Internal factory valve package and drains may not align with cabinet knockouts 3 Dimensions shown in inches mm All dimensions are 1 4 in 4 Bottom panel is Arctic White polyester powder coat paint NOM DIMENSIONS in AIRFLOW FILTER SIZE in m s Ls um 6 1 10 x 28 6 1 10 x 28 6 2 10 x 33 7 2 10 x 45 7 2 10 x 45 7 4 10 62 7 4 10 62 Fig 10 42CK Horizontal Cabinet Unit with Telescopic Access Panel Front Supply Bottom Return and Heater Dimensions 13 1 1 2 1 DUCTED 25 38 JUNCTION BOX REAR RETURN 1 25 FILTER OPTIONAL L SHAPE DRIP LIP SHIPPED LOOSE CHILLED HOT WATER SUPPLY amp RETURN CONNECTION 26 20 3 4 660 527 RESILIENT MOUNTING GROMMETS WITH 3 8 10 DIA HOLE TYP OF 4 7 8 22 KNOCKOUT 1 1 2 38 KNOCKOUT TYPICAL 1 25 PARTIAL REAR VIEW TYPICAL BOTH SIDES 156 1 1 4 32 jen 20 3 4 1 2 38 527 38 1 DUCTED REAR iain 1 25 FILTER RETURN AIR TWWSTERERW EET Hk 12 305 111 4 1 ETE SUPPL 78 nn 14 354 MAX 1 25 SUPPLY DUCT COLLAR Se HINGED o eee
54. R VIEW TYPICAL BOTH SIDES 1 1 2 38 1 1 2 38 125 1 25 TOP VIEW 1 1 2 38 10 286 12 305 MIN 14 356 FRONT VIEW RIGHT SIDE VIEW LEGEND NOTES 1 Junction Box 4 in x 4 in 1 Right hand shown left hand unit opposite Coil connection Stri High Limit locations 5 g in 3 Electric SH Heater E Element 2 Unit sizes 02 and 03 have one motor one blower sizes 04 4 Optional Drip Lip shipped loose through 08 have one motor 2 blowers sizes 10 and 12 have 5 Mounting Holes 4 Rubber Grommets 2 motors 4 blowers a have 3 a in Diameter Hole 3 Bottom access panel has an Arctic White baked finish 6 Piping KO 11 2 in Diameter 4 Refer to supply and return connections above for coil stub out 7 Electrical KO 7 g in Diameter locations Not shown optional drip lip 3 speed fan switch wall plate Drain 11 gt Diameter Wc e 8 ain KO 1 2 in Diamete 1 2 fiberglass insulation on inside of casing closed cell foam 9 Supply Duct Collar j on main drain pan n For optional coil connections view 42CA 203 1 using the Fan Coil Builder 11 Drain 7 OD 12 Stamped Bottom Return Air Grille 13 Filter 14 Stamped Air Supply Grille 15 Hinged Bottom Access Panel 16 Supply Connection 5 g in OD 17 Return Connection 5 g in OD UNIT SIZE NOM AIRFLOW DIMENSIONS
55. S HR h SGS 3 76 3 5 8 92 n R TOP VIEW 4 PIPE OPTION unctione ie 1 1 1 4 32 Ga A Las t Pl B 13 12 11 10 63 24 1600 1372 LEGEND Cold Water Return CS Cold Water Supply D Drain Hot Water Return HS Hot Water Supply R Ret S Supply FRONT VIEW SIDE VIEW ITEM QTY provided for reference only Dimensions may vary with options ordered 5 127 1 Electrical Knockouts 1 1 Units are fabricated of 18 galvanized steel with a 16 gage galvanized fan deck 2 All risers are insulated with 1 2 closed cell insulation 2 Strip Heater Optional 1 3 Thermostats shipped loose for field connection 3 Limit Switch tt Optional 0 00 Switch tT Optional 1 ES are pipar coil ud e as specified TAF m ower motor valves coil and filter are accessible through the return air opening 3 isolation Ball Valves 24 6 Unit and control box are insulated with 1 2 coated fiberglass insulation 5 Coil Stub Outs 2 4 7 Riser length floor to floor 2 in maximum riser length 115 inches 6 Shipping Brace 2 4 8 Maximum riser size is 21 2 diameter If larger sizes are required please consult the factory 9 Expansion loops in hot water heating circuits as required 7 Flexible Drain Tube P Trap 1 10 9 x 21 4 slot is provided in the inside back pan
56. Sides 2 4 7 1 2 in Flare Adaptor SWT x 37 5 2 4 8 Coil 1 2 in OD Copper Tube 1 9 1 in Throwaway Filter 1 Factory Installed 10 Manual Air Vent 1 11 Return Air Opening 1 Knockout For Optional Thermostat Remote Mounting 13 Molex Connector for Field Installed 1 Thermostat 14 Control Box Duct Collar Extension 15 1 2 in Side 1 in Top 1 2 3 Outside Air Knockout On Each Side Panel Electrical Knockouts Near Each Side 18 Service Switch Optional 1 Motor 3 Speed PSC with Quick Connect 1 o 1 J 19 N 20 Blockoff Plate 21 5 Panel Control Box 1 Control Opening Knockout 1 Surface Mount Thermostat Supply Air Openings 4 Sides and Top Stitch Cut 2 N 2 NOTES OcoxoonROM LEGEND Cold Water Return Cold Water Supply Drain Hot Water Return Hot Water Supply Permanent Split Capacitor Sweat 480 218 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components 1 2 3 Units are fabricated of 18 gage galvanized steel with 16 gage galvanized fan deck Thermostats shipped loose for field connection Blower motor valves coil and filter are accessible through the return air opening Unit and control box are insulated with a in 13 mm coated fiberglass insulation All risers will ship separately from units Riser dimensions are measured fr
57. Soft solder 50 50 60 40 or 85 15 or other low temperature lead alloy is not suitable for this application 42 IMPORTANT Chilled water and hot water risers should never be piped to drain down into the condensate riser Extensive water damage can occur due to drain over flow Drain chilled and hot water risers to a remote loca tion away from the unit such as sink room and floor drains 8 Anchor risers as required a Do not fasten risers rigidly within each unit Risers must be free to move within pipe chase in response to normal vertical expansion and contraction b Built in risers must be anchored at some point to building structure Unit design accommodates up to 1l 5 in expansion and contraction in riser assemblies when positioned properly at the job site Risers must be anchored to the building struc ture to limit expansion and contraction movement to a maximum of 1 5 inches Riser anchoring and expansion compensation is not included in the fac tory supplied unit and must be provided 9 Test the system for leaks after the connections are com pleted When testing with air or some other gas it might be necessary to tighten stem packing nuts on some valves to maintain air pressure in the riser Pressure testing risers with water should be done with the unit service valves closed to prevent flushing debris into the unit valve pack ages This will also allow risers to be drained down after testing in the winter t
58. Switch 3 Speed behind Access Door 2 Electrical Sheath Heater Element 3 Stamped Supply Grille 4 Supply Conn 5 OD 5 Return Conn 5 g in OD 6 Stamped Return Grille 7 Filter 8 Air Vent g in MPT 9 Front Panel Fastener 10 Optional Valve Package inside cabinet 11 Drain Pan Auxiliary with 3 4 in MPT Drain Connection 12 Return Air Grille DIMENSIONS in UNIT SIZE AIRFLOW ES EL ER WEIGHT dies q Ib 02 200 03 300 04 400 06 600 1 Right hand unit shown left hand unit opposite Coil connection locations are 5 g in Unit sizes 02 through 04 have one motor 2 blowers size 06 has 2 motors 4 blowers Cabinet has an Arctic White baked finish Height increases by 2 in with electric heat Standard 2 row coil shown Not shown 1 2 fiberglass insulation on inside of casing closed cell foam on main drain pan For optional coil connections view 42VC 203 1 using the Fan Coil Builder Valve package is factory installed inside the cabinet when ordered with the unit based on component size Dimensions shown in inches mm UNIT 72 100 108 154 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 21 42VE Cabinet Lowboy Unit with Electric Heat Dimensions 24 TOP VIEW TOP VIEW EXTENDED MODEL STANDARD MODEL STW STY 11
59. T VIEW RIGHT SIDE VIEW NOM UNIT LEGEND Junction Box Return Air Grille Hinged Bar Type with Filter Frame Anodized Aluminum Only AIRFLOW WEIGHT size dm A B D E Blower motor qu 06 600 3 1375 14 26 8 5 1 1 150 Unit Mounting Channel 2 14 gage 4 Mounting 08 800 36 1875 20 3t 8 1 160 91919 Ve in 2 1 AUxXIIIar rip LI 10 1000 40 221 24 3 8 1 1 170 5 Electric Strip Heater Element optional 12 1200 45 27 28 40 8 2 2 195 6 Coil Inlet Copper Sweat Connection E N NI NI 1 7 Coil Outlet Copper Sweat Connection a 1400 so 4 8 2 205 c 16 215 9 Filter Throwaway 1800 e 4 4 ss 8 2 2 99 ee Drain g in 20 200 64 4612 48 59 8 2 2 235 12 Drain Pan Insulated with Styrofoam mn e 13 Side Access Panel 2 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other 14 Supply Air Grille Double Deflection components NOTES 1 Right hand unit shown left hand unit opposite 2 Coil stub out connection data available on request 3 Units fabricated of galvanized steel with an Arctic White baked finish 4 Internal parts fabricated of galvanized steel 5 Sizes 06 08 and 10 have one motor one blower Sizes 12 through 20 have 2 motors 2 blowers 6 Units must have drai
60. VG BLOWER qty 42VA VB VF 1 42VC VE 2 42VG 1 FILTERS Nominal Size in 1 in thick 42VA VB VF 42VC VE S 7 x21 3 4 fX 263 7X 343 7x 483 42VG 10 x 141 5 10 x 28 Qty 1 1 1 1 1 1 1 1 SUPPLY DUCT COLLAR 1 in PIPING CONNECTIONS Sweat in Coil Outlet and Inlet Drain Connection Co gt N N N ON i N N AN 73 4 21 73 4 X 253 4 73 4 31 3 4 73 4 X 413 4 73 4 X 433 4 73 4 X 573 4 73 4 X 653 4 5 5 OD 3 4 MPT Calculate operating weight of unit shipping weight coil water weight x number of coil rows TAvailable in sizes 02 06 UNIT SIZE 42D NOMINAL AIRFLOW cfm SHIPPING WEIGHT Ib Table 3 Physical Data 42D Series Units 06 08 10 12 14 16 18 20 60 800 1000 1200 1400 1600 1800 2000 42DA 64 79 93 110 119 129 137 155 42DC 94 107 150 169 174 178 195 220 42DD 150 163 176 195 220 235 240 247 420 135 155 165 184 199 215 232 243 420 157 167 177 199 215 229 249 258 COIL WATER WEIGHT Approx Ib per row of coil 1 3 1 6 1 9 2 3 2 7 3 0 3 4 3 7 COILS FPI 10 fins inch Coil Face Area sq ft MOTOR qty BLOWER qty FILTERS Nominal Size in 1 in thick 2DA 42DC 14 x 21 14x26 14 30 42DD Front Return 123 4 x 21 123 4 x 26 123 4 x 30 Bottom Return 123 4 x 21 123 4 x 25 123 4 x 29 42DE 14 x 143 4 14 x 193 4 14 x 2
61. al factory valve package and drains may not align with cabinet knockouts 3 Dimensions shown in inches mm All dimensions are 1 4 in 4 Bottom panel is Arctic White polyester powder coat paint UNIT ABS Ow DIMENSIONS QTY BOTTOM RETURN SIZE Blower FILTER SIZE in Me ee 02 6 10x 28 03 6 1 10 x 28 04 6 2 10 x 33 06 7 2 10 x 45 08 7 2 10 x 45 10 7 4 10 x 62 12 7 4 10 x 62 Fig 9 42CK Horizontal Cabinet Unit with Telescopic Access Panel Front Supply and Bottom Return Dimensions 12 1 25 1 1 2 38 ELECTRIC STRIP HEATER ELEMENT CONTACTOR BOX STRIP HEATER IGH LIMIT l WLELEIEEI CEEE room OPTIONAL L SHAPE DRIP LIP SHIPPED LOOSE L 9 CHILLED HOT WATER SUPPLY amp RETURN CONNECTION 26 qo 660 527 RESILIENT MOUNTING a GROMMETS WITH 3 8 19 DIA HOLE OF 4 ba d e od 1 1 MM 7 8 22 DO KNOCKOUT 512 1 1 2 38 25 KAOCKOUT aes E a TYPICAL TOP VIEW PARTIAL REAR VIEW TYPICAL BOTH SIDES 1 1 1 4 24 32 610 ee 1 1 2 20 3 4 1 1 2 38 527 121305 1286 141356 1 125 SUPPLY DUCT COL
62. alve may be specified in the bypass line to permit equal flow balancing Supply and return connections at coil will be swage fit for field braze standard or unions option Check job specifications for system pressure pressure drop limitations and flow rate prior to 2 valve oe components or valve package size 1 5 in 3 4 in etc 2 PIPE SYSTEM One Valve Package or 4 PIPE S CER Two Valve Packages Application 2 Pipe Hydronic Heating Only 2 Pipe Hydronic Cooling Only 2 Pipe Hydronic Cooling with Total Electric Heat e 2 Pipe Hydronic Cooling and Heating 2 Pipe Hydronic Cooling and Heating with Auxiliary Electric Heat 4 Pipe Hydronic Cooling and Heating LEGEND Balancing Valve Ball Valve Soll Ball Valve with Memory Stop Circuit Setter Gate Shut Off Valve J Motorized 3 Way Valve AOX When aquastat is used for automatic changeover bypass is required as indicated by dashed line pus Packages factory furnished and installed Valves are 5 g in ODS unless otherwise specified If an automatic flow control valve is added it will be located on supply line between shutoff valve and coil or motorized control valve if supplied pec BALL VALVE r MOTORIZED d 3 WAY VALVE BALANCE VALVE 7 BALLVALVE A BALANCING VALVE MOTORIZED BALL VALVE 3 WAY VALVE 1 B 1 3 3 WAY MOTORIZED COIL BALL VALV
63. ational piping codes prior to specifying system pressure rating 91 Table 5 Piping Components cont HVIEOUSKET H DESCRIPTION FACTOR RATING STEAM STRAINER Y type body with 50 mesh stain less steel screen Application Used for removal of small parti cles from system water during normal system operation Should not be used in lieu of main 19 0 system strainers Strainer screen may have to Clean 250 N A be removed during initial high pressure sys tem flushing during start up Screen should be removed and cleaned per normal mainte nance schedule provisions for strainer blow down not provided GATE VALVE Manual shut off valve Application Used for unit isolation during system flushing servicing etc Do not use for water balancing i GLOBE VALVE Standard pattern manual shut off and throttling valve Application Used for unit isolation Not rec ommended for high flow rates due to relatively 200 200 NO high pressure drop COMPRESSION STOP VALVE Manual shut off valve Application Used for unit isolation during system flushing servicing etc Not recom mended for high flow rates due to relatively high pressure drop BALL VALVE Manual balance and shut off valve Application Used for unit isolation and water flow balancing Without memory stop feature water balance point must be marked by installer if necessary Check specifica tions for service
64. ave one motor one blower Sizes 12 through 20 have 2 motors 2 blowers QUOD OL de ct Filter and filter rack are standard DRAIN OUTLET 14 Supply Duct Collar 1 inch Supply Connection Mounting Holes four 3 4 in diameter with Rubber Grommet 16 Standard 4 row coil shown Other coil option dimensional data available on request For optional coil connections view 42DA 203 1 using the Fan Coil Builder Fan switch wall plate not shown Galvanized finish provided as standard Dimensions are in inches mm Fig 24 42DC Furred In Ceiling Unit with Plenum and Electric Heat Dimensions 27 8 SUPPLY AIR OPENING 457 A TOP VIEW Oo 1 25 5 FRONT VIEW RIGHT SIDE VIEW UNI NOM DIMENSIONS in 1 3 QTY UNIT UNIT LEGEND SIZE AIRFLOW WEIGHT 1 Motor Junction Box A B Blower Motor ip 2 Air Vent grin MPT 3 Return Connection o 60 23 15 1 1 1 185 Optonal in Leds 08 145 5 Bottom Return optional 10 1000 155 L E P h 12 1200 180 8 Drain Connection 7 g in OD 14 1400 190 P EL s Panel rowaway 16 1600 200 11 Electric Strip Heater Element optional 18 1800 215 12 Supply Duct Connection 1 in 20 230 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components NOTES 1 Right hand unit shown left hand unit opposite Coil connection locations are 5
65. cerning the use of con cealed ceiling space as return air plenums 42V UNITS 1 Select the unit location Allow adequate space for free air circulation service clearances piping and electrical connections and any necessary ductwork For specific unit dimensions refer to the submittals Allow clearances according to local and national electric codes Make sure the floor is able to support the weight of the unit See Table 2 for nominal unit weight Ensure wall behind unit is smooth and plumb if necessary install furring strips on walls with irregular surfaces or mullions Furring strips must be positioned behind mounting holes in unit 42VA VB VF units Fasteners furring strips and other seals if required must be field supplied Remove all wall and floor moldings from behind the unit Ensure 42VA top panel under window application and 42VB VF front panel has been removed from unit to obtain access to the four 0 75 mounting holes Hanger rods and fasteners and other required hardware must be field supplied Move unit into position Ensure unit is level or pitched towards drain to ensure proper drainage and operation Pitch of suspended unit can change after coil is filled recheck after filling coil 40 Adjust 42VA VB VE VF units leveling legs so unit is level Unit must be level for proper operation and condensate drainage Mounting unit a Use rods and fasteners to suspend the unit at the
66. ck open and tag unit electri cal service switch Standard motors are permanently sealed and lubricated No lubrication is required unless special motors have been supplied or unusual operating conditions exist Clean Fan Wheel Lock open and tag unit electrical service switch For access to fan assembly remove front or bottom panel Fan assembly may be removed from its tracks if unit has a long conduit lead Use a stiff brush or vacuum to remove dirt and debris from scroll Wipe all fan surfaces with a damp cloth Clean Electric Heater Lock open and tag unit elec trical service switch 1 Remove dust dirt or foreign material before start up Do not block normal airflow to and from units blockage may damage electric heaters 2 Clean heater elements with soft brush or vacuum cleaner as necessary 3 To replace blown fusible links nichrome heaters only a Remove fan deck horizontal units only for access to heater b Remove nut securing link at each end install new link reinstall nuts c Reinstall fan deck if removed Electric resistance heaters typically require no normal peri odic maintenance when unit air filters are changed properly The operation and service life may be affected by other condi tions and equipment in the system The two most important op erating conditions for an electric heater are proper airflow and proper supply voltage High supply voltage and or poorly dis tributed or insuff
67. ct Information Job Name Address City otate Zip Installing Contractor Sales Office Start up Performed By INSPECTION INSTALLATION AND START UP CHECKLIST ITEM COMPLETE ITEM COMPLETE Receiving amp Inspection Electrical Connections 1 Unit received undamaged 33 Refer to unit wiring diagram 2 Unit received complete as ordered 34 Connection incoming power service s 3 Furnish only parts accounted for 35 Install and connection furnish only parts 4 Unit arrangement hand correct 36 All field wiring in code compliance 5 Unit structural support complete and correct Unit Start Up Handling amp Installation 37 General visual unit and system inspection 6 Mounting grommets isolators used 38 Check for proper fan rotation 7 Unit mounted level and square 39 Record electrical supply voltage 8 Proper access provided for unit and accessories 40 Record ambient temperatures 9 Proper electrical service provided 41 Check all wiring for secure connections 10 Proper overcurrent protection provided 42 Close all unit isolation valves 11 Proper service switch disconnect provided 43 Flush water systems 12 Proper chilled water line size to unit 44 Fill systems with water refrigerant 13 Proper hot water line size to unit 45 Vent water systems as required 14 Proper refrigerant line sizes to unit 46 All ductwork and grilles in place 15 Proper steam line sizes to unit 47 All unit panels and filters in place 16 Proper steam conde
68. d 3 1 4 YEL BL 3 co ro Rt 22 m ERR 9 CENE WHT Se a c 2 PUR 777 o TECH LK VALVE N 7 Z D 1 01 1 Qeeel LLOUUULBMULNNNNIIUUUUJA e RED RED RED 24 1 dul YEL Ede BLOWER 2 J J Jz 5 yo lt 2 MOTOR gt BLK 4 BL q 9 YEL H O WHT M WHT i SERVICE SWITCH lt OPTIONAL pee FUSES d OPTIONALD Li dc BK Z 7 PEN Le or Opm o 40 6 WHTX XFORMER EQUIPME 208 240 B Da 5 WHT TE EQUIPME GROUND GROU lt OPTIONAL Fig 56 42C S V except VG and 42D 600 1000 cfm 2 Pipe Heating and Cooling with Automatic Changeover Remote Wall Mounted Debonair Thermostat 24 v 58 Thermostatic 2 Pipe Auxiliary Electric Heat with Valve Control This system also called twilight or intermediate season electric heat goes a long way towards solving the spring and fall control problems of 2 pipe systems Chilled water can be run late into the fall turned on early in the spring and heat will still be available to all units whenever required In winter the system is switched over to hot water Two changeover devices are required for this One device switches the action of the thermostat and the other locks out the electric heat when hot water is in the coil With this system the fan runs continuously unless manually
69. de is auto matically disengaged when valve is electrically acti vated Consult factory for normally open valve applications 3 WAY MOTORIZED VALVE Electric 2 position flow 5 0 5 0 control valve closed to coil open to bypass or open to coil closed to bypass Normally closed with man SERVICE ual override lever Installed in supply line to unit 2 8 2 8 Application Same comments as 2 way motorized BYPASS valve except with manual override lever engaged the valve is open to both ports and water flow will take 300 200 N A the path of least resistance through the valve pack age not necessarily 10096 through the coil MODULATING VALVE Optional Non Spring Return Floating Point Actuator Modulating valves are designed to control the flow in the circuit by making incremental adjustments to the flow path within the valve Application To control fluid flow in fan coil units On the 42DD SG SJ SH commercial fan coil units 4 0 300 200 N A the factory provided modulating valve has applica tion restrictions In these models the valve packages are located in the air stream downstream of the coil Due to the ambient temperature limitations of the modulating valves the valves can be used in the units listed above only with a 2 pipe cooling system MODULATING VALVE Requires ETO Engineer ing to Order Spring Return Modulating valves are designed to control the flow in the circuit by making incremental a
70. djustments to the flow path within the valve Application Same comments as non spring return 4 0 300 200 N A except when powered the actuator moves to the desired position at the same time tensing the spring return system When power is removed for more than two minutes the spring returns the actuator to the normal position AQUASTAT Water temperature sensing electrical switch Application Clips directly on nominal size 1 2 3 in copper tubing for water temperature sensing Must be correctly located for proper control operation LEGEND NOTES Cv Coefficient of Velocity 1 Motorized 2 way valves have a maximum close off differential of 25 psi EA PNECL EXPANSION 2 Motorized 3 way valves have a maximum close off differential Check all system component pressure ratings coils values of 10 psi pumps etc with manufacturer and any applicable local or national piping codes prior to specifying system pressure rating 33 COPPER TUBE SAFE WORKING PRESSURE PSI 200 300 400 500 pressure psi for copper water tube alone at 200 F System pressure limitation Nominal size tube shown add due to joint material and 1 8 to obtain actual tube OD water temperature LEGEND 330 Maximum safe working IMPORTANT THE ABOVE CHART IS FOR REFERENCE ONLY Check all system component pressure ratings coils valves pumps etc and any applicable local or nat
71. e Switch Optional 1 CR Cold Water Return 24 Motor 3 Speed PSC 1 E a Water Supply with Quick Connect Drain HR Hot Water Return 22 Blockoff Plate 1 HS Hot Water Supply 23 Panel Control Box 1 PSC Permanent Split Capacitor Control Openi pening Knockout SWT Sweat 24 Surface Mount Thermostat Supply Air Openings NOTES 25 1 2 3 1 Units are fabricated of 18 gage galvanized steel with a 16 gage galvanized fan deck 4 Sides and Top Stitch Cut 2 Thermostats shipped loose for field connection 3 Blower motor valves coil and filter are accessible through the return air opening 4 Unit and control box are insulated with 1 2 13 mm coated fiberglass insulation 5 All risers will ship separately from units Riser dimensions are measured from centerline of knockout 6 Drain knockouts on three sides of cabinet 7 Flex hoses ship with unit 8 Thread fittings on both ends of flex hoses must be field tightened and leak tested 9 Return air panel not shown 10 All dimensions are in inches mm DIMENSIONS in mm size WEIGHT 2166 SUD Top Supply Pinar bed A B se p se F 03 360 163 14 x 12 14 x 10 121 5 x 241 4 x 1 a REET 14 356 12 305 356 305 14 356 10 254 56x254 17 432 3 76 11 38 14 356 318x616 x 25 06 480 218 18 x 12 16 x 12 161 4 x 263 4 x 1 18 457 12 305 457 x 305 1
72. e insulated with 1 2 closed cell insulation Thermostats shipped loose for field connection Risers are piped to coil with valves as specified Blower motor valves coil and filter are accessible through the return air opening Unit and control box are insulated with 1 2 coated fiberglass insulation Riser length floor to floor 2 in maximum riser length 115 inches Maximum riser size is 21 2 diameter If larger sizes are required please consult the factory Expansion loops in hot water heating circuits as required A 9 in x 21 4 in slot is provided in the inside back panel for coil connection penetration to permit expansion DN and contraction of risers Care must be taken to position the risers so that coil connection is at center of slot UNIT SIZE 03 04 06 08 10 12 Drawing is pictorial see unit arrangements for actual supply and return air orientation dimensions are in inches DIMENSIONS in A B B C D 300 14 8 14 6 4 0 400 14 i12 14 6 i4 10 eo 5 1 w 1 woo pels TUnit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 31 42SGM Furred In Master Stack Dimensions 34 UNIT WEIGHT Ib 180 225 240 260 280 305 3 5 8 92 iUd d CS CR D H
73. e packages for standard 2 pipe units are piped for same end connection L H or R H Valve Packages for 4 Pipe Systems Select 2 valve packages per unit NOTE Hot water valve package requirements may not be the same as chilled water valve package OPPOSITE END CONNECTION SAME END CONNECTION LEGEND CW Chilled Water HW Hot Water LH RH Left Hand Right Hand Fig 41 Pipe Connection Configurations 43 Hydronic Coil Arrangement NOTE Consult factory if heating circuit must be in preheat position Entering air side of coil MM COOLING CIRCUIT HEATING CIRCUIT IN REHEAT POSITION LEAVING AIR SIDE OF COIL Field Piping Connections VERTICAL FLOOR UNITS 42VB VE VF Pipe into cabinet end compartment opening in bottom and back VERTICAL FLOOR UNITS 42VA VC Pipe to external connections no cabinet CEILING UNITS EXPOSED 42CG CK DE DF Pipe through knock outs in rear of cabinet to coil and valve package connections CEILING UNITS CONCEALED 42 CE CF DA DC Pipe to connections extending from end of unit VERTICAL UNITS 4200 UNIT Pipe to stub connections extending from side of unit WALL UNITS FURRED IN Pipe to stub connections at the side of unit or into optional piping compartment Optional piping compart ment is required if valves are factory installed Factory installed valve package is limited to one 2 way or 3 way moto
74. ed Control Box Optional 2 Drain Pan Auxiliary Shipped Loose 3 Air Vent Ae in MPT 4 Supply Conn 9 g in OD 5 Drain 3 in MPT 6 Return Conn 5 g in OD 7 Filter 8 Electrical Sheath Heater Element 9 Discharge Opening 16 3 8 419 2 TTE 3 1 2 89 RIGHT SIDE VIEW NOTES 1 Right hand unit shown left hand unit opposite Coil connection locations are 5 g in 2 Unit sizes 02 through 04 have one motor 2 blowers size 06 has 2 motors 4 blowers 3 Standard 2 row coil shown 4 Optional unit mounted switch box and controls when specified are installed on opposite side from cooling connections 5 Height increases by 2 in with electric heat 6 Not shown 3 speed fan switch 1 gt fiberglass insulation on inside of casing closed cell foam on main drain pan 7 Units have galvanized finish 8 For optional coil connections view 42VC 203 1 using the Fan Coil Builder 9 Dimensions shown in inches mm NOM DIMENSIONS in FT sq ft WEIGHT Ib LLL etm 7 02 200 03 300 04 400 06 600 p 50 1 60 72 110 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 19 42VC Furred In Lowboy Unit with Electric Heat Dimensions 27 TOP VIEW 9 DEEP QUERN L DNE AASA FEADAN 14 3 8 St a Le a Enn 36
75. el for coil connection penetration to permit expansion 8 Coil 1 2 OD Copper Tube 1 and contraction of risers Care must be taken to position the risers so that coil connection is at center of slot 11 Drawing is pictorial see unit arrangements for actual supply and return air orientation 9 Filter Throwaway 1 in 1 12 All dimensions are in inches 10 Return Air Opening 1 11 Air Vent Manual 1 DIMENSIONS 12 Knockout For Optional Remote Mounting 2 Single Supply Double Supply Top Supply 13 Molex Connector for Field Installed Stat 1 A B A B D 14 Control Box 1 1 1 14 14 1 17 11 11 14 16 T Return Air Blockolf Panel Optionay 400 14 12 14 6 14 10 17 iUo 14 17 i soo 18 to te 6 16 12 20 t 2 fi 19 Access Panel Control Box 100 22 8 18 16 24 1 83 22 CIT e Te 21 Duct Collar 1 5 in Extension Typical E Typical LEK TUnit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components 22 Supply Air Opening s 1 2 3 Factory Installed TTField Installed Fig 32 42SGS Furred In Slave Stack Dimensions 35 3 Item Qty A 76 1 Float Switch Optional 1 3 5 8 t 8 2 62 09 17172171717 32 3 Flexible Drain Tube P Trap 1 4 Drain Knockout 3 Sides 5 1 6 Riser Knockouts 3
76. ent sheetrock dust or other debris from settling on coil fins motor blower assembly or other unit interior surfaces Return access and exposed cabinet units may be furnished with a baked enamel finish Small scratches in this finish may be repaired with touch up paint available from the factory Some colors of touch up paint are available in aerosol contain ers and all touch up paint is available in pint quart and gallon cans To repaint the factory baked enamel the finish should be prepared by light sanding with no 280 grit sand paper or no 000 or no 0000 fine steel wool The surface may also be wiped with a surface etch cleaning product such as Sand or Pasceo These items should be available at most paint product stores It should be noted that the more conscien tiously this preparation is done the more effective it will be After this preparation is accomplished the factory finish should provide excellent adhesion for a variety of air dried top coats Enamel will give a more durable higher gloss finish while latex will not adhere as well and will give a dull softer finish Top coats involving an exothermic chemical process be tween two components such as epoxies and urethanes should be avoided Factory aerosol touch up paint may require a number of light dust coats to isolate the factory baked enamel finish from the quick drying touch up paint Step 6 Cut out Openings for Grilles and The
77. et Unit Dimensions 10 31 2 Ts ine mE apicem uam m 9 4 He ue Lee h EET H n acra F 222 7 1 22 i ae 5 rl TNI I a 1 o3 5 HRS 7 7 72 a a a 6 18 Pu cc TAE 457 17 ees zn I A W H TOP VIEW PARTIAL REAR VIEW TYPICAL BOTH SIDES FRONT VIEW RIGHT SIDE VIEW LEGEND cR ee oT 1 Junction Box 4 in 4 in 1 hand unit opposite Coil connection 2 ona amped 2 Unit sizes 02 and 03 have one motor one blower sizes 04 3 Optional Drip Lip shipped loose 4 Electric Strip Heater Element through 08 have one motor 2 blowers sizes 10 and 12 have 2 motors 4 blowers 3 Cabinet has an Arctic White baked finish 6 Electrical KO 7 g in Diameter 4 ELS URP and return connections above for coil stub out Eod a 5 Not shown optional drip lip 3 speed fan switch wall plate 8 Supply KO 17 Diameter 9 Drain KO 11 2 in Diameter fiberglass insulation on inside of casing closed cell foam on main drain pan 10 Drain Connection 7 OD D 11 Optional Valve Package inside cabinet 6 E Pie ls coil connections view 42CA 203 1 using the Fan 12 Filter o 7 Malve package is factory
78. factory installed on units when DX coil option is chosen with distributor and TXV NOTE If a hot water coil is used in the reheat position a field supplied freezestat must be installed to protect the coil TEST AND INSULATE When all joints are complete perform hydrostatic test for leaks Vent all coils at this time Check interior unit piping for signs of leakage from shipping damage or mishandling If leaks are found notify a Carrier representative before initiating any repairs Release trapped air from system refer to Make Final Preparations section Never pressurize any equipment beyond specific test pres sure Always pressure test with an inert fluid or gas such as clear water or dry nitrogen to avoid possible damage or injury in the event of a leak or component failure during testing N CAUTION All water coils must be protected from freezing after initial filling with water Even if system 1s drained unit coils may still have enough water to cause damage when exposed to temperatures below freezing Following the hydrostatic test insulate all piping to prevent sweating To ensure compliance with building codes restore the struc ture s original fire resistance rating by sealing all holes with material carrying the same fire rating as the structure SYMBOL SKETCH LEGEND Table 5 Piping Components Cy FACTOR LX T STEAM rini USE MANUAL AIR VENT Threaded brass needle valve with screwdriver slot
79. factory provided mounting holes with rubber grommets on the top of the unit on 42VA VB VF units Reach into unit and attach unit to the wall using the 0 375 in mounting holes 4 in top panel do not use any other locations The four mounting holes and hanger slots with rubber grommets are NOT for balancing unit b On 42VG unit ensure unit is placed snug within the wall 42 VE unit ensure unit is flushed against the wall NOTE For any unit without a return air duct connection applicable installation codes may limit unit to installation in single story residence only 42D UNITS l Select the unit location Allow adequate space for free air circulation service clearances piping and electrical con nections and any necessary ductwork For specific unit dimensions refer to the submittal drawings Allow clear ances according to the local and national electrical codes Be sure either the ceiling 42DA DC DE and DF units or floor 42DD unit is able to support the weight of the unit See Table 3 for nominal unit weight Move unit into position Ensure unit is level or pitched towards drain to ensure proper drainage and operation See Fig 23 27 Pitch of suspended unit can change after coil is filled recheck after filling coil Mounting units to the ceiling a When unit is lifted access to the 0 375 1n mount ing holes is on the top panel of the unit Hanger rods and fasteners and other required hard
80. for adjustment Application Body brazed into high point of heating and cooling coils for bleeding air from coil Standard item on all hydronic coils not used on steam or DX coils Should not be used in lieu of main system air vents NO AUTOMATIC AIR VENT Nickel plated brass SWAGE Copper tube end expanded to accept a copper tube of the same size for factory or field brazing Application Used where possible for all tub ing joints for best joint integrity YES UNION Combination wrought copper cast brass union assembly solder by solder Application Used for quick connect and dis connect of valve package components to min imize field labor and facilitate servicing of unit INSERTION TEST PORT Brass body valve for acceptance of test probe up to 1 5 in diameter Application Installed on one or both sides of the coil to allow for temperature or pressure sensing Used for close tolerance water bal ancing and service analysis YES NO ur valve fiber disc type with positive shut off ball check and quick vent feature via knurled vent SCrew Application Optional replacement for man ual air vent Automatically passes minute quantities of air through the fiber discs which N A N A 240 NO expand upon contact with water completely sealing the valve As air accumulates the fiber discs dry and shrink repeating the cycle Not recommended for removing large quantities of air encountered dur
81. he following descriptions are for line voltage controls only For 24 v control operating sequence refer to thermostat operating instructions STANDARD WIRING PACKAGES Manual Fan Control On all vertical cabinet units the stan dard fan speed switch is furnished unit mounted and wired See Fig 50 On all vertical furred in units and all horizontal units the switch is shipped separately on a decorative wall plate for field mounting and wiring The standard switch has LOW MEDIUM HIGH and OFF positions plus an auxiliary contact to energize thermostats valves dampers etc NOTE Wiring diagrams are for 120 v power supply If other voltages for heaters or controls are specified wiring may differ from that shown 55 3 SPEED SWITCH TAPE OFF OR CONNECT TO THERMOSTAT SEE NAMEPLATE FOR VAC LINE VOLTAGE CONTROLS POWER SUPPLY NOTE 3 BLK BLU RED UNIT MOUNTED SWITCH BOX BLK BLU RED WHT TWO MOTORS WIRED IN PARALLEL UNIT MOUNTED 3 SPEED SWITCH TAPE OFF OR CONNECT TO THERMOSTAT CONTROLS REMOTE MOUNTED SWITCH BOX BY OTHERS 2x 4x 25 IN te UNIT MOUNTED JUNCTION BOX WALL MOUNTED NOTES 1 Motors are thermally protected 2 Use copper conductors only 3 See unit nameplate for power supply Provided disconnect means and overload protection as required 4 Unit mounted thermostats are not recommended for fan control because of poor temperature sensing Fan control not
82. icient airflow over the element will result in element overheating This condition may result in the heater cycling on the high limit thermal cutout The high limit ther mal cutout device is a safety device only and is not intended for continuous operation With proper unit application and opera tion the high limit thermal cutout will not operate This device only operates when a problem exists and ANY condition that causes high limit cutout MUST be corrected immediately High supply voltage also causes excessive amperage draw and may trip the circuit breaker or blow the fuses on the incoming power supply 68 After proper airflow and supply power are assured regular filter maintenance is important to provide clean air over the heater Dirt that is allowed to deposit on the heating element will cause hot spots and eventual element burn through These hot spots will normally not be enough to trip the high limit thermal cutout device and may not be evident until actual heat er element failure Clean or Replace Air Filters Lock open and tag unit electrical service switch At the start of each cooling season and after each month of operation more or less depending on operating conditions re place throwaway filter or clean permanent filter THROWAWAY FILTER Replace filter with a good qual ity filter of the size shown in Tables 1 4 Do not attempt to clean and reuse disposable filters PERMANENT FILTER FIBERGLASS TYPE 1 Ta
83. illes etc are accounted for whether packaged separately or shipped at a later date If shipment is damaged or incomplete file claim with transportation company and advise Carrier im mediately Protect Units from Damage The equipment must always be properly supported Temporary supports used during installation or service must be adequate to hold the equipment securely Equipment should always be stored in the proper ori entation as marked on the carton To maintain warranty protect units against adverse weather theft vandalism and debris on jobsite Equipment covered in this manual 15 not suitable for outdoor installations Do not allow foreign material to fall into drain pan Prevent dust and debris from being deposited on mo tor and fan wheels Manufacturer s warranty is void if foreign material is allowed to be deposited on the motor or blower wheels of any unit Prepare Jobsite for Unit Installation To save time and to reduce the possibility of costly errors set up a com plete sample installation in a typical room at jobsite Check all critical dimensions such as pipe wire and duct connection requirements Refer to job drawings and product dimension drawings as required see Fig 1 36 Instruct all trades in their part of the installation Identify and Prepare Units Be sure power require ments match available power source Refer to unit nameplate and wiring diagram 1 Check all tags on unit to determine if sh
84. ing initial start up or subse quent draining and refilling Should not be used in lieu of main system air vents SEM rr id rs Cv Coefficient of Velocity DX Direct Expansion Check all system component pressure ratings coils values pumps etc with manufacturer and any applicable local or national piping codes prior to specifying system pressure rating 50 Motorized 2 way valves have a maximum close off differential of 25 psi 2 Motorized 3 way valves have a maximum close off differential of 10 psi Table 5 Piping Components cont CUMBOL SKETOH DESCRIPTION Cy FACTOR RATING STEAM N A N A 2 3 9 PRESSURE TEST PORT Brass body 1 4 in service access fitting with removable depres N A Bg sor type core 210 Valve orifice size Application Installed on both sides of the NO coil to allow for pressure sensing Attach pressure gages to facilitate close tolerance water balancing GAGE COCK Brass shut off valve with 1 4 in fitting for attachment of pressure gages Application Installed on both sides of the coil to allow for pressure sensing Attach pressure gages to facilitate close tolerance water balancing May be used in bleed bypass line to regulate water flow CIRCUIT SETTER Variable water flow bal ancing valve with manual adjustment knob pointer percent open scale memory stop and integral pressure read out ports Application Used for close tolerance
85. installed inside the cabinet when Stamped REU AIr aNg ordered with the unit based on component size fno 8 Dimensions shown in inches mm 15 Supply Return Connections 5 OD 16 Supply Grille Stamped Standard NOM DIMENSIONS in QTY UNIT FACE UNIT AIRFLOW AREA WEIGHT L c B r e Motor a 34 11 98 118 126 168 176 215 245 1 1 2 2 2 4 4 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 8 42CG Horizontal Cabinet with Electric Heat Dimensions 11 25 12 2 JUNCTION BOX OPTIONAL L SHAPE DRIP LIP SHIPPED LOOSE CHILLED HOT WATER SUPPLY amp RETURN CONNECTION 26 20 3 4 660 527 RESILIENT MOUNTING ROMMETS WITH 3 8 10 DIA HOLE TYP OF 4 7 8 22 KNOCKOUT 1 1 2 38 KNOCKOUT TYPICAL 1 25 PARTIAL REAR VIEW TYPICAL BOTH SIDES TOP VIEW 1 1 4 1 1 2 610 20 3 4 1 1 2 38 527 7 38 B6 AIR inasi MAX ____________________________ 6 1 8 38 12 2 305 1 4 1 25 SUPPLY 22o Lee gt DUCT COLLAR BOTTOM RETURN noo eem e AIR PANEL RETURN PILLE amp URN AIR 1 25 FILTER 7 8 22 O D CONDENSATE FRONT VIEW 2 0 0 CONDENSATE RIGHT SIDE VIEW NOTES 1 Right hand unit shown left hand unit opposite 2 Intern
86. ional piping codes prior to specifying system pressure rating JOINT MATERIALS A 50 50 Lead Tin at 200 F D 95 5 Tin Antimony at 200 F B 50 50 Lead Tin at 150 F Note 1 95 5 Tin Antimony at 150 Note 2 C 50 50 Lead Tin at 100 F 95 5 Tin Antimony at 100 F NOTES 1 Not recommended for high system water pressures 2 Standard factory joint material Fig 49 Copper Water Tube and Joint Material Pressure Ratings 54 Step 3 Make Electrical Connections Refer to unit nameplate for required supply voltage fan and heater amperage and required circuit ampacity Refer to unit wire dia gram for unit and field wiring Make sure all electrical connec tions are in accordance with unit wiring diagram and all appli cable codes The fan motor s should never be controlled by any wiring or device other than the factory supplied switch or thermostat switch combination unless prior factory authorization is obtained Fan motor s may be temporarily wired for use during construction only with prior factory approval and only in strict accordance with the instructions issued at that time Floor cabinet type units have factory wired integral fan switches Connect power wires to leads in unit junction box per unit wiring diagram On the other units install remote fan switch according to job drawings Hook up switch and power wiring per unit wiring diagram Install optional wall mounted thermostat per instructions
87. ip optional shipped loose 08 160 L Electrical Strip Heater Element optiona 10 1000 170 6 Supply Air Duct Connection 1 in 12 1200 195 7 Manual Air Vent 8 Filter Throwaway 1 in 14 1400 205 neua Ar Duct 16 1600 215 10 Drain 7 OD m 180 s a 44 55 2 2 Hc M 20 2000 235 13 Coil Inlet Copper Sweat Connection 14 Coil Outlet Copper Sweat Connection Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components NOTES SOR X0 lt O Right hand unit shown left hand unit opposite Coil stub out location data available on request Unit fabricated of galvanized steel Internal parts fabricated of galvanized steel Sizes 06 08 and 10 have one motor one blower Sizes 12 through 20 have 2 motors 2 blowers Units must have drain line pitched and trapped externally For optional coil connections view 42DA 203 1 using the Fan Coil Builder Fan switch wall plate not shown Galvanized finished provided as standard Dimensions are in inches mm Fig 26 42DE Ceiling Unit with Full Casing and Electric Heat Dimensions 29 7 8 22 DIA K O 1 1 2 38 DIA 18 457 15 3 4 i 800 1 16 Gs 9 229 1 3 8 35 L3 76 PARTIAL REAR VIEW BOTH SIDES TOP VIEW 5 ah 9 355 3 76 X qi FRON
88. ipping screws are to be removed Remove screws as directed 2 Rotate the fan wheel by hand to ensure that the fan is unrestricted and can rotate freely Check for shipping damage and fan obstructions 2 1 25 2 1 4 B 3 64 76 TOP VIEW 3 4 19 FRONT VIEW t RIGHT SIDE VIEW LEGEND 1 Junction Box remote mount unm shown left hand unit opposite Coil connection ocations are 5 8 52 2 D 2 Unit sizes 02 and 03 one motor one blower sizes 04 E Tell Tale Drain Conn 5 in OD optional through 08 have one motor 2 blowers sizes 10 and 12 have 5 Drip Lip optional ss Standard 3 tow coll shown TT has m d HABE 4 Overall unit dimension increases by 4 in with optional electric heat 5 T Air Vent sin MPT in 5 Not shown 3 speed fan switch wall plate closed cell foam on main drain pan m n Ja in SD 6 Units have galvanized finish Supply Conn g in 7 For optional coil connections view 42CA 203 1 using the Fan Coil Builder 8 Dimensions shown in inches mm UNIT NOM DIMENSIONS in QTY UNIT FACE UNIT SIZE AIRFLOW Blower AREA WEIGHT Ctm sqft ib 02 1 36 03 1 39 04 2 49 06 2 59 08 2 64 10 4 95 12 4 107 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 1 42CA Furred In Horizontal Unit Dimensions
89. irectly to assigned space for installation Great care must be taken to assure that no force or pressure be applied to the coil risers or piping during handling Never use the riser to lift the unit To maintain the straight and square cabinet alignment avoid lift ing or supporting the cabinet only at the top and bottom 1 2 3 Begin on lowest floor and progress upward floor by floor to top Examine drain line Fig 28 34 Be sure both ends are in place and that it forms a trap Avoid pinching drain line Tip unit over riser hole in building floor As unit is righted align riser with unit below NOTE The unit must be lowered into the space taking care to properly align the risers to engage the riser swaged section on the unit below The riser should never be bent or pushed together to be passed through the floor slot and should never be lifted up or pulled down to meet the riser on the floor below or above Install isolator pads beneath the four corners of unit if applicable Before anchoring the equipment in place the unit must be leveled and the cabinet must be squared and brought into line with any adjacent or included walls The unit may be anchored in place by bolting directly through the unit floor or attaching to the cabinet in some location that will not interfere with drywall or other items such as the sup ply grille thermostat or return access panel When at taching to the unit cabinet care must be take
90. llar 1 in 11 Air Vent 1 5 MPT 12 Access Panel 13 Return Conn 5 g in OD 14 Supply Conn 5 OD 15 Supply Duct Collar 1 in 16 Hanger Slots 4 Rubber Grommet has 3 g in Diameter Hole NOM 1 25 3 76 OPTIONAL REAR RETURN 26 1 2 673 FILTER REMOVAL NOTES DIMENSIONS in Right hand unit shown left hand unit opposite Coil connection locations are 5 g in Unit sizes 04 thru 08 have one motor 2 blowers size 10 has 2 motors 4 blowers Refer to above figure for configuration of filter and track if installed in optional plenum Dimension increases by 4 in with optional electric heat Not shown 3 speed fan switch wall plate 1 2 fiberglass insulation on inside of plenum when installed closed cell insulation on main drain pan Units have galvanized finish For optional coil connections view 42CA 203 1 using the Fan Coil Builder Dimensions shown in inches mm QTY UNIT FACE AIRFLOW AREA ETE IE Rr IERI GE SL GL IR SEE sat Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 6 42CF Furred In Horizontal Unit with Plenum and Electric Heat Dimensions 2 L 3 1 2 89 6 4 _ 5 18 di 457 14 7 x 3 5 J 8 51 PARTIAL REAR VIEW 2 TYPICAL BOTH SIDES 51 FRONT VIEW RIGHT SIDE V
91. n line pitched and trapped externally 7 Stamped supply and return grilles are not available 8 Bottom return air is not available 9 For optional coil connections view 42DA 203 1 using the Fan Coil Builder 10 Fan switch and wall plate are not shown 11 Dimensions are in inches mm Fig 27 42DF Exposed Ceiling Unit with Supply and Return Grille and Electric Heat Dimensions 30 CR CS HR HS ojoj 1 lt 2 10 23 3 76 3 5 8 92 XE 010101010 HS D CR CS 1 SGA 4 PIPE OPTION 3 5 8 92 23 LEGEND Cold Water Return Cold Water Supply Drain Hot Water Return Hot Water Supply Return Supply Allrisersare tangent to back plate TOP VIEW 3076 10 88 2558 A NOTE 7 63 1600 8 7 5 DESCRIPTION QTY Drawing provided for reference only Dimensions may vary with options ordered OTES Electrical Knockouts 1 Units are fabricated of 18 gage galvanized steel with a 16 gage galvanized fan deck 3 in Expanded Section 3 5 2 ay risers are Hts with cell insulation Strip Heater Optional ara piped to coli wily valve Limit Switch tTt Optional 1 5 Blower motor valves coil and accessible through the return air opening in Isolation Ball Valves cu E Flexible Drain Tube P Trap 1 8 Maximum riser size is 21 2 in diameter If larger sizes are required
92. n to not pen etrate the cabinet in locations that may damage internal components or wiring The mounting technique is a mat ter of choice however the unit should always be an chored securely to prevent movement during construction and riser expansion and contraction On certain units shipping screws or braces must be removed after the unit is installed Be sure to check all tags on the unit to deter mine which if any of these devices need to be removed If installing a 42SJ unit follow Steps a h For all other 425 units continue to Step 7 NOTE The 42SJ back to back fan coils have been de signed to serve two separate rooms These products are classified by Underwriters Laboratories Inc for use in penetration firestop systems control number 27WL when ordered with 1 rated chase See UL Fire Resistance Directory for more information Figure 37 shows the 42SJ unit with standard risers and with Siamese risers a Lay out the control lines for the drywall track and studs in the floor and ceiling see Fig 38 Fig 37 42SJ Unit with Standard and Siamese Risers 41 CHASE SIDE PANEL DRYWALL INSTALL WALL TRACK AND STUD INTO STUD POCKET CONTROL FORMED BY LINES CHASE SIDE PANEL INSTALL STUDS FROM TOP OF UNIT TO CEILING 4 CORNERS Fig 38 42SJ Unit as Shipped NOTE Tracking may be installed now or after the unit is set Position the 42SJ fan coil assembly between two rooms with the unit drywall
93. nces ac cording to local and national electric codes Make sure ceiling is able to support the weight of the unit See Table 1 for nominal unit weight Ensure bottom panel has been removed from 42CG units with mounting holes When unit is lifted access to the 0 375 in mounting holes is through the bottom of the unit Hanger rods and fasteners and other required hard ware must be field supplied Move unit into position Ensure unit is level or pitched towards drain to ensure proper drainage and operation Pitch of suspended unit can change after coil 15 filled recheck after filling coil Mounting unit a Use rods and fasteners to suspend the unit at the factory provided mounting holes with rubber grommets on the top of the unit on 42CG CK units Reach into unit and attach unit to the ceiling using the 0 375 in mounting holes 4 in top panel do not use any other locations b Use rods and fasteners to suspend the unit at the factory provided 0 375 in hanger slots 4 with rubber grommets on the top of the unit on the 42 CE and CF units NOTE The four mounting holes and hanger slots with rubber grommets are NOT for balancing unit 42 and 42CF units without plenums and 42CE and with bottom inlet may be installed in noncombustible areas only NOTE The installation of horizontal concealed units must meet the requirements of the National Fire Protection Associa tion NFPA Standard 90A or 90B con
94. netration to permit expansion and contraction of risers Care must be taken to position the risers so that coil connection is at center of slot 11 Drawing is pictorial see unit arrangements for actual supply and return air orientation 12 42SHA available in front return only 13 All dimensions are in inches DIMENSIONS in AIRFLOW WE Gm eroe aa e o e e e s s 2 22 14 202 400 14 12 14 8 17 22 1 2 22 149 247 600 14 12 14 20 25 2 20 1734 262 TUnit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 29 42SH Cabinet Dimensions 32 CR CS HR HS ITEM NIDIA RION 19 25 ETUR 3 5 8 92 p E ll ll II Mun TOP VIEW 15 14 hu 13 12 UE 88 2558 NOTE 7 4222 63 54 EE 1600 1372 10 i 9 5 T in cec 8 7 5 127 LEGEND Cold Water Return Cold Water Supply Drain Hot Water Return J Hot Water Supply Return Supply FRONT VIEW SIDE VIEW DESCRIPTION QTY Drawing provided for reference only Dimensions may vary with options ordered NOTES Electrical Knockouts 2 1 Units are fabricated of 18 gage galvanized steel with a 16 gage galvanized fan deck m 2 All risers are insulated with 2 closed cell insulati
95. ngs for unit configurations dimensions clearances and pipe connections Refer to unit wiring label for all electrical connections follow NEC National Electrical Code and local codes PHYSICAL DATA Component weight data shipping weights and filter data of the 42C D S V units are provided in Tables 1 4 Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53420004 01 Printed in U S A Form 42 351 Pg 1 12 09 Replaces 42 25 Table 1 Physical Data 42C Series Units UNIT SIZE 42C Bo 04 106 o 10 12 NOMINAL AIRFLOW cfm eo 40 80 80 1000 1200 SHIPPING WEIGHT Ib 42CA 36 39 49 59 64 95 107 42CE 55 60 70 82 95 135 154 42CF 84 97 110 163 42CG 98 118 126 168 176 215 245 42CK 115 120 135 150 155 227 241 COIL WATER WEIGHT Approx Ib per row of coil 42 CE CK 0 7 0 8 1 0 1 4 1 7 2 3 2 7 42 1 02 1 42 1 71 2 32 COILS FPI 10 fins inch Coil Face Area sq ft t 0 8 1 1 1 4 1 9 2 3 3 2 9 7 MOTOR qty 42C Series 1 1 1 1 1 2 2 BLOWER qty 42 CE CG CK 1 1 2 2 2 4 4 42CF 2 2 2 4 e FILTERS Nominal Size in 1 in thick 42CA 10 x 24 10 x 28 10 x 32 10 x 42 10 x 42 10 x 54 10 x 64 42CETT 10 x 18 10 x 22 10 x 28 10 x 33 10 x 40 10 x 54 10 x 62 42CFtt 123 4 x 28 123 4 x 33 123 4 x 40 123 4 x 54 42CG Bottom Return 10 x 231
96. nsate trap on return line 48 Start fans pumps chillers etc 17 Proper steam supply pressure to unit 10 psi max 49 Check for overload condition of all units 18 All service to unit in code compliance 50 Check all ductwork and units for air leaks 19 shipping screws and braces removed 51 Balance air systems as required 20 Unit protected from direct amp foreign matter 52 Record all final settings for future use Cooling Heating Connections 53 Check piping and ductwork for vibration 21 Protect valve package components from heat 54 Check all dampers for proper operation 22 Mount valve packages 55 Verify proper cooling operation 23 Connect field piping to unit 56 Verify proper heating operation 24 Pressure test all piping for leaks 57 Reinstall all covers and access panels 25 Install drain line and traps as required 26 Insulate all piping as required 27 Install drip lip under piping as required Ductwork Connections 28 Install ductwork fittings and grilles as required 29 Flexible duct connections at unit 30 Proper supply and return grille type and size used 31 Control outside air for freeze protection 32 Insulate all ductwork as required CL 1 10 SNOW LNO SNOW LNO Replaces 42 25 CL 2 12 09 Form 42 351 Printed in U S A Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations
97. nsions shown in inches mm NOM DIMENSIONS in QTY UNIT FACE AIRFLOW AREA EHEZEREGEREREZESENBLL ILAS 1 1 2 2 2 4 4 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 3 42CE Furred In Horizontal Unit with Plenum Dimensions 1 INSULATED PLENUM 5 83 H ru REAR MTG HOLES 88 1 r a 29 Eu FRONT MTG HOLES een 57 76 A TOP VIEW OPTIONAL REAR RETURN ELECTRICAL KNOCKOUTS IN TOP amp BOTTOM OF FILTER REMOVAL CONTACTOR BOX 1 25 ALTER FRONT VIEW RIGHT SIDE VIEW LEGEND NOTES 1 Junction Box 4 in x 4 in 1 Right hand unit with standard 3 row coil shown left hand unit opposite Coil 2 Flexible Metal Conduit _ connection locations are 5 Unit sizes 02 and 03 have one motor one blower sizes 04 through 08 have 3 Mounting Bracket one motor 2 blowers sizes 10 and 12 have 2 motors 4 blowers a Standard 3 row coil shown 2 3 6 Strip Heater High Limit 4 Unit available with bottom or rear return air 7 Tell Tale Drain Conn 5 g in OD optional 5 Dimension increases by 4 in with optional electric heat 8 Drip Lip optional shipped loose 6 Not shown 3 speed fan switch wall plate 1 2 in fiberglass insulation on 9 Filter 2 PED er
98. ntial height inlet to outlet must be at least 1 in wg greater than the total static pressure of the unit The differential height of the outlet to the bottom of the trap must not be less than the total static pressure of the unit Provide a trap of at least 2 in near the end of the drain line to prevent odors from entering the rooms 2 IN MIN TRAP CONDENSATE PAN STUB OUT 7 8 IN FIELD SUPPLIED DRAIN EXTENSION Fig 48 Typical Drain Line Details 42D Unit Shown 42C D V WATER SUPPLY RETURN CONNECTIONS Install piping in accordance with all applicable codes Position valves over the drain pan Be sure valves are in proper operat ing position and are easily accessible for adjustment See Fig 44 47 Refer to Fig 49 for copper water tube and joint material pressure ratings If coil and valve package connections will be made with a solder joint care should be taken to ensure that the components in the valve package are not subjected to high temperatures which may damage seals or other materials Many 2 position electric control valves are provided with a manual operating lever This lever should be in the OPEN position during all soldering operations If coil connection is made with a union the coil side of the union must be prevented from turning it must be backed up during tightening See Fig 44 47 for common valve packages A CAUTION DO NOT OVERTIGHTEN Overtightening will distort egg shape the
99. o avoid freeze up problems 10 After system integrity has been established pull the riser insulation back into place over the joint and glue or seal to prevent sweating and heat loss or gain Internal chilled water piping and valves are located over the drain pan and need not be insulated 11 Ifrequired fireproof were necessary Any fireproofing re quirements where risers or piping penetrate floors or walls are the responsibility of the installer This work should be done only after all pressure testing 1 complet ed The fireproofing method used must accommodate pipe expansion and contraction and the piping must be protected from abrasion and chemical attack The pipe in sulation also must be maintained to prevent sweating and must be protected from wear or erosion at the joint be tween the insulation and the fireproofing material Step 2 Make Piping Connections Access to piping is available through the access panels at the side of the units or front of the unit Qualified personnel in accordance with local and national codes must perform all piping connec tions Refer to Tables 1 4 for piping connections NOTE It is important to have a common understanding of which side of the unit is the right hand side and which is the left hand side When facing the supply air outlet from the front of the unit air blowing in your face your right hand will be on the right side of the unit and your left hand will be on the left side
100. of the unit See Fig 40 Refer to Fig 41 and 42 for typical piping connections The supply and return piping connections of the factory provided valve package are either swaged for field brazing standard or union fitted optional for field connection to the coil Fig 40 Unit End Reference RH Piping R H UNIT 111 AIR L H A Electrical L H Piping R H Electrical NOTE Chilled water piping determines the hand of the unit SAME END CONNECTION VALVE PACKAGES There are limitations on physical size of pneumatic valves quantity and type of matching components and required control interface See Fig 43 Consult factory before ordering any special valve package components that are not covered in this book Valve packages are shipped with the units or in unit cartons Valve packages include belled ends for field soldering to coil connections factory furnished cooling valve packages are arranged to position as much of the package as possible over an auxiliary drain pan or drip lip This helps minimize field piping insula tion requirements Refer to Fig 44 47 for pipe connection configurations See Table 5 for descriptions of common piping components R H CW Piping F H UNIT L H Electrical R H Electrical R H HW Piping NOTE Chilled water piping determines the hand of the unit OPPOSITE END CONNECTION Valve Packages For 2 Pipe Systems Valv
101. oling cycle and from LOW to OFF on the heating cycle An ON OFF toggle switch replaces the standard 3 speed fan switch The toggle switch can be concealed to ensure that the unit runs on low speed when cooling This action greatly reduces the chance of condensation problems that exist with other standard fan cycling controls See Fig 52 FAN SWITCH ON OFF THERMOSTAT UNIT SWITCH BOX AQUASTAT 1 H N BLK l LI L2 TWO MOTORS WIRED POWER SUPPLY 3 1 Motors are thermally protected 2 Use copper conductors only 3 See unit nameplate for power supply Provide disconnect means and overload protection as required Fig 52 Thermostatic Fan Control 2 Pipe System with Safety Cycle Thermostatic Electric Valve Control 2 Pipe A thermo statically controlled 2 position valve provides superior control to fan cycling With this control the fan runs continuously un less it is manually switched to the OFF position The fan must be on before the valve can be opened to supply water to the coil This system can be used for normal 2 pipe changeover systems and can also be furnished for cooling only or heating only applications by omitting the changeover and specifying which application is intended See Fig 53 and 54 for line volt age control See Fig 55 and 56 for 24 v control
102. om centerline of knockout Drain knockouts on three sides of cabinet Flex hoses ship with unit Thread fittings on both ends of flex hoses must be field tightened and leak tested Return air panel not shown All dimensions are in inches mm DIMENSIONS in mm Side Supply Top Supply LA Sz D sze E F Ii 14 356 12 305 356 s 305 14 356 356 CE 4 3 76 11 5 38 14 356 Fig 33 42SU Universal Furred In Stack Dimensions 36 FILTER SIZE in mm 121 2 X 241 4 x 1 318 x 616 x 25 161 4 X 263 4 1 413 x 679 x 25 201 5 x 291 4 x 1 521 x 743 x 25 3 3 76 92 A PN ANAS de 92 1 1 4 2 HRNHS D NCRMCS 32 1 073 33 1 1 4 32 3 1 1 4 32 18 127 4 Item Qty 1 Float Switch Optional 1 5 2 1 3 Flexible Drain Tube P Trap 1 1 each 4 Drain Knockout 3 Sides side 88 5 Limit Switch Factory Installed 1 2235 26 7 1 8 Knockouts 3 Sides 2 4 9 1 2 in Flare Adaptor SWT x 37 5 2 4 10 Coil 1 2 in OD Copper Tube 1 11 1 in Throwaway Filter 1 9 Factory Installed 12 Manual Air Vent 1 13 Return Air Opening 1 14 Knockout For Optional 3 Thermostat Remote Mounting 15 Molex Connector for 1 Field Installed Thermostat 5 16 1 al 127 17 Duct Collar Extension 4 2 3 1 2 in Side 1 in Top Outside Air Knockout 18 On Each Side Panel 1 19 Electrical Knockouts 1 Near Each Side LEGEND 20 Servic
103. on Board X 3 Thermostats shipped loose for field connection 3 in Expanded Section 3 5 4 Risers are piped to coil with valves as specified 5 Blower motor valves coil and filter are accessible through the return air opening Stip 6 Unit and control box are insulated with 1 gt coated fiberglass insulation Limit Switch TT Optional 2 7 Riser length floor to floor 2 in maximum riser length 115 inches 1 5 in Isolation Ball Valves 4 8 5 E jd Rm nee If alae sizes 2 required please consult the factory Expansion loops in hot water heating circuits as required Thermafiber Insulation 2 10 9 x 21 4 slot is provided in the inside back panel for connection penetration to permit expansion Flexible Drain Tube P Trap 2 and contraction of risers Care must be taken to position the risers so that coil connection is at center of slot Ags 11 Drawing is pictorial see unit arrangements for actual supply and return air orientation Coil 2 in OD Copper Tube 2 12 All dimensions in inches Filter Throwaway 1 in 2 etum Ar Opening 5 DIMENSIONS in EGG ESOS Remote Mounting 2 single Supply Double Supply Top Supply 202 Control Box 2 2 2 Riser Drain Copper i 400 14 12 14 6 14 10 17 1 14 40 Riser Supply and Return Copper 600 8 10 18 6 146 P 12 20 1 2 18 Drain Pan 2 80 148
104. on e 2 Pipe Hydronic Cooling and Heating 2 Pipe Hydronic Cooling and Heating with Auxiliary Electric Heat NOTES Additional aquastat required as noted above LEGEND Balancing Valve Ball Valve Circuit Setter Gate Shut Off Valve J Motorized 2 Way Valve BALL VALVE AQUASTAT BLEED 1 lt 6 BY PASS ones BALL VALVE CA MOTORIZED 2 WAY VALVE AQUASTAT BALL VALVE _ gt BALL 1 2 WAY MOTORIZED COIL MOTORIZED 2 WAY VALVE GATE EN SHUT OFF 2 BALL 1 BALANCING 1 2 WAY MOTORIZED COIL BALL VALVE BYPASS MOTORIZED 2 WAY VALVE 1 BALL 1 CIRCUIT SETTER 1 2 WAY MOTORIZED MOTORIZED 2 WAY VALVE COIL BYPASS Fig 45 Two Way Motorized Control Valve Package with Aquastat Bleed Bypass Line 46 On the 3 way motorized valve flow is normally closed to coil and open to system return Motor closes bypass flow to sys tem return while opening flow through coil Water bypasses coil and flows directly to system return when unit is OFF The aquastat A clips on supply line upstream from 3 way valve as shown above It senses system water tempera ture to prevent cooling operation with hot water in system piping or heating operation with chilled water in system pip ing Aquastat s required for 2 pipe cooling and heating with automatic changeover control and or auxiliary electric heat A bypass balancing v
105. p on solid surface to dislodge heavy particles 2 Wash in hot water If needed use mild solution of com mercial solvent such as sal soda or trisodium phosphate 3 Set filter on end so that water drains out through slots in frame Allow filter to dry thoroughly 4 Recharge filter with Film Cor or similar recharging oil Three ounces is sufficient for medium size filter Oil may be applied by insect spray gun For easier spraying the oil can be warmed If the filter is dipped in the recharging oil remove it im mediately and allow draining through slots in frame 5 Replace filter in unit If another type of filter is used follow the filter manufacturer s instructions Warranty All equipment and components sold through the Parts Department are warranted under the same conditions as the standard manufacturer s warranty with the exception that the warranty period is thirty 30 days unless the component is furnished as a warranty replacement Parts furnished as war ranty replacements are warranted for the remaining term of the original unit warranty or not less than thirty 30 days Copyright 2009 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53420004 01 Printed in U S A Form 42 351 Pg 70 12 09 Replaces 42 251 START UP CHECKLIST FOR 42C D S V SERIES FAN COIL AIR CONDITIONERS Proje
106. rized valve and 2 hand valves Location of field piping connections will vary depending on number of coil rows on factory supplied coil or arrangement of factory supplied valves Fig 42 Piping Connection Positions 44 Ball Valve w Mem Stop Gage Cock AIR VENT T 2 Union Pressure Circuit Ball Valve Test Port Setter Ps Swage Insertion Balance Gate Valve 4 Test Port Control E Valve D 5 ern doch gt lt Swage Insertion Fixed Flow Strainer Gate Valve He m Joh Union Pressure Ball Valve Test Port x Gage Cock COIL SERVICE WATER FLOW STRAINER ISOLATION CONNECTION FITTINGS BALANCING VALVES Coil Connections Positions A amp B When isolation valve only is added to supply or return line the isolation valve will be factory brazed to the coil stub out Addition of any other component or connection to the supply or return line will change the respective coil connection s Service Fittings Positions C amp D Optional fittings for attaching pressure temperature sensing devices to obtain pres sure drop or temperature differential across coil Used with ball valve or balance valve where extremely accurate water flow balancing is required Water Flow Balancing Positions E F amp H Only one device per total valve package to be used for balancing water flow through the coil When isolation valve ball valve or ball valve with memory stop at po
107. rmostats On all units with optional supply air or return air grilles dampers thermostats and switch plates cut out openings where specified on the job plans Be careful not to cut wires piping or structural supports For remote mounted thermostats use a steel thermostat shield ring to protect drywall from thermostat wiring where applicable Prevent dirt dust and debris from settling in unit If wall finish or color is to be spray applied cover all openings to prevent overspray entering unit Step 7 Make Final Preparations 1 Turn off power to the unit open unit electrical disconnect 2 Install thermostats and perform any other final wiring as applicable 3 Clean dirt dust and other construction debris from unit interior Be sure to check fan wheel and housing 4 Rotate fan wheel by hand to be sure it is free and does not rub housing Check that wing nuts securing fan assembly to fan deck are tight 5 Ensure all panels and filters are installed before checking fan operation Turn on power to the unit 6 Install filter frame at front of coil If field supplied filters are used be sure size is as specified in Tables 1 4 IMPORTANT Do not start up or operate unit without filter Be sure filter and unit interior are clean 7 Check the fan and motor operation The fan switch is located in a switch box behind spring loaded access door on unit cabinet or is wall mounted Speeds are marked on switch plate
108. rovides for a unit piping run out to the service valves which are cen tered in the access slots and level or sloping down slightly away from the riser This prevents con densation from running back to the riser and pos sible damage from dripping at the bottom of a riser column After units are positioned and riser centered in pipe chase make unit plumb in two directions using unit frame as a reference c Anchor unit to building Use bolts or lag screws through holes provided in unit frame d After all units a stack are anchored make unit to unit riser joints First center each coil to riser line within the expansion slot in the unit back panel Each riser joint must be in vertical alignment with at least 1 in penetration into the swaged joint This condition is met if floor to floor dimension 1s as specified and coil to riser lines are properly centered Wide variations in floor to floor dimensions may necessitate cutting off or extending individual risers Such modifica tions are the full responsibility of the installing contractor e Before making the riser joints the riser insulation must be pulled back away from the joint and pro tected from heat during the soldering process Sol der riser joints with phos copper silfos or other high temperature alloy The riser joint filler mate rial must be selected to withstand the total operat ing pressure both static and pumping head to which the system will be subjected
109. s 04 have 3 g in Diameter Hole through 08 have one motor 2 blowers sizes 10 and 12 have __ PEPI 2 motors 4 blowers UP 3 Bottom access panel has an Arctic White baked finish 6 Drain KO 11 l in Diameter 4 Refer to supply and return connections above for coil stub out Ex locations Supey a dal 5 in OD 5 Not shown optional drip lip 3 speed fan switch wall plate 9 Optional Rear Return Consult factory for 1 2 in fiberglass insulation on inside of casing closed cell foam collar dimensions on main drain pan 10 Drain 7 g in OD 6 For optional coil connections view 42CA 203 1 using the Fan 11 Stamped Bottom Return Air Grille Coil Builder 12 Filter 7 package is factory installed inside the cabinet when 13 Stamped Air Supply Grille ordered with the unit based on component size 14 Hinged Bottom Access Panel 8 Bottom return or bottom supply is an ETO engineering to order ion 5 a i request 9 Dimensions shown in inches mm UNIT NOM DIMENSIONS QTY UNIT FACE AREA UNIT WEIGHT sq ft WE e ew we 02 35 37 32 1 0 83 115 03 1 1 08 120 04 2 1 35 135 06 2 1 88 150 08 2 2 31 155 10 4 3 16 227 12 4 241 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 13 42CK Horizontal Cabinet Unit with Telescopic Access Panel 16 m qo PARTIAL REA
110. shipped with thermostat Connect as shown on unit wiring diagram Units with factory supplied and factory installed aquastats may be shipped with the aquastats mounted on a coil stub out If this 1 the case remove the aquastat before installing valve package When reinstalling aquastats consult the factory piping diagram in the submittal for proper location If the valve package is field supplied the aquastat must be installed in a location where it will sense the water temperature regardless of the control valve position A bleed bypass may be required to guarantee proper aquastat operation The aquastat bypass line allows a small amount of water to flow from the supply to the return piping when the control valve is closed NOTE The aquastat must be able to sense whether the flowing water is being chilled or heated and switches a contact closed to provide automatic summer or winter changeover for the system When a two pipe cooling heating system with optional auxiliary electric heat is desired an additional aquastat is required field wiring must be in accordance with governing codes and ordinances Any modification of unit wiring without factory authorization will invalidate all factory warranties and nullify any agency listings IMPORTANT Wiring diagrams shown depict typical control functions Refer to unit wiring label for specific functions Units may be equipped with line voltage controls or 24 VAC control systems T
111. sition H is used for water flow bal ancing do not specify additional balancing device at position E or F When balancing device is specified at position E or F isolation valve does not require balancing feature at position H with a 3 way motorized valve a bypass balancing valve may be specified in the bypass line to permit equal flow balancing Strainer Position G Does not include blow down fitting and should not be used in lieu of main piping strainers Isolation Valves Positions H amp J Normally requires one each on supply and return line See exception under circuit setter When position H is used for balancing ball valve or ball valve with memory stop check specifications for service valve requirements Fig 43 Symbols and Placement of Valves 45 The 2 way motorized valve motor drives valve open and a spring returns valve to normally closed position no water flow with unit OFF Supply connection at coil will be swage fit for field braze standard or union option Return connection at coil will be factory brazed if isolation valve only Addition of any other component will require swage fit for field braze or optional union connection Check job specifications for system pressure pressure drop limitations and flow rate prior to riore valve Re components or valve package size 1 2 in 3 4 in etc 2 PIPE SYSTEM One Valve Package or 4 PIPE e TER Two Valve Packages Application e 2 Pipe
112. um Wr foam on main drain pan n 4 Units have galvanized finish M __ 8 For optional coil connections view 42CA 203 1 using the Fan Coil Builder 12 Access Panel 9 Dimensions shown in inches mm 13 Supply Duct Collar 1 in 14 Air Vent 1 MPT 15 Return Conn OD 16 Supply Conn 5 g in OD 17 Hanger Slots 4 Rubber Grommet has 3 g in Diameter Hole NOM DIMENSIONS in QTY UNIT FACE AIRFLOW AREA 1 1 2 2 2 4 4 Unit weights are based on dry coils and minimum rows Weights exclude packaging valves and other components Fig 4 42CE Furred In Horizontal Unit with Plenum and Electric Heat Dimensions 1 3 76 ls s m um cT EET L 4J 1 1 8 C 29 HOLES 2 1 4 57 TOP VIEW ie FRONT VIEW LEGEND 1 Junction Box Installed with Plenum 2 Flexible Metal Conduit 3 Insulated Plenum 4 Mounting Bracket 5 Drain Conn g in OD 6 Tell Tale Drain Conn a in OD optional 7 Drip Lip optional shipped loose 8 Filter 9 Return Duct Collar 1 in 10 Access Panel 11 Supply Duct Collar 1 in 12 Supply Conn 5 OD 13 Air Vent 1 14 Return Conn 5 5 OD 15 danger Slots 4 Rubber Grommet has 3 g in Diameter Hole NOM CLIP REMOVA
113. union seal surface and destroy the union 49 NOTE The project specifications for system pressure pres sure drop limitations and flow rate should be checked prior to selection of specific components or the valve package size 42C D V STEAM CONNECTIONS On units with steam heating coils the maximum steam pressure applied to the unit should never exceed 10 psig However when steam is used on a 4 pipe application system with 1 row and 2 row coils the maximum steam pressure should never exceed 5 psig suitable for only low pressure steam Do not drain the steam mains or take off through the coils Drain the mains ahead of the coils through a steam trap to the return line Overhead returns require 1 psig of pressure at the steam trap discharge for each 2 ft elevation to ensure continu ous condensate removal Proper steam trap selection and installation is necessary As a guideline in creating a steam trap locate the steam trap dis charge at least 12 in below the condensate return connection This provides sufficient hydrostatic head pressure to overcome trap losses and ensure complete condensate removal 42C D V DIRECT EXPANSION DX REFRIGERANT PIPING Use the condensing unit manufacturer s recom mended line sizes and requirements Suction line must be insulated for correct operation Use refrigerant grade copper lines only The unit is not applied as a heat pump Thermostatic expansion valve TXV and sensing bulb are
114. ware must be field supplied b Use rods and fasteners to suspend the unit at the factory provided mounting holes with rubber grommets on the top of the unit Attach unit to the ceiling using the 0 375 mounting holes 4 in top panel do not use any other locations c Use the rods and fasteners to suspend the unit at the factory provided 0 375 in hanger slots 4 with the rubber grommets on the top of the unit on the 42DA DC DE and DF units NOTE The four mounting holes and hanger slots with rubber grommets are NOT for balancing unit d Models 42DA and 42DC with bottom inlet may be installed in noncombustible return spaces only Mounting units on the floor a Ensure wall behind the unit is smooth and plumb if necessary install furring strips on walls with irregular surfaces or mullions Furring strips must be positioned behind mounting holes on 42DD units Fasteners furring strips and other seals if required must be field supplied b Ifthe unit has leveling legs adjust them correctly to level the unit Protect units from damage caused by jobsite debris Do not allow foreign material to fall in unit drain pan Prevent dust and debris from being deposited on motor or fan wheels 425 UNITS A factory tag is on top of each unit Tag states riser tier number floor room number if furnished and supply air arrangement Check unit for any other labels that apply to installation Remove unit from pallet and take d

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